Home catalog with parentheses ( ) causes error with OmniSharp

## Issue Description ##
My Windows home directory is at C:\Users\MagnusBratt(Mira). It is created and named by Windows. I had added "(Mira)" to my last name in my account to distinguish from another account.

## Steps to Reproduce ##
1. Have a home directory with parenthesis in the directory name
2. Start VS Code and add OmniSharp extension
3. Start OmniSharp

## Expected Behavior ##
OmniSharp starting without error message

## Actual Behavior ##
The following error message

```
Starting OmniSharp server at 2020-05-15 21:24:18
Target: g:\My Drive\Code\elastic-db-tools-master\Samples\ElasticScaleStarterKit

OmniSharp server started.
Path: c:\Users\MagnusBratt(Mira)\.vscode\extensions\ms-dotnettools.csharp-1.21.18\.omnisharp\1.35.1\OmniSharp.exe
PID: 6076

'c:\Users\MagnusBratt' is not recognized as an internal or external command,
operable program or batch file.
[ERROR] Error: OmniSharp server load timed out. Use the 'omnisharp.projectLoadTimeout' setting to override the default delay (one minute).
```

## Logs ##

### OmniSharp log ###
Starting OmniSharp server at 2020-05-15 21:24:18
Target: g:\My Drive\Code\elastic-db-tools-master\Samples\ElasticScaleStarterKit

OmniSharp server started.
Path: c:\Users\MagnusBratt(Mira)\.vscode\extensions\ms-dotnettools.csharp-1.21.18\.omnisharp\1.35.1\OmniSharp.exe
PID: 6076

'c:\Users\MagnusBratt' is not recognized as an internal or external command,
operable program or batch file.
[ERROR] Error: OmniSharp server load timed out. Use the 'omnisharp.projectLoadTimeout' setting to override the default delay (one minute).

### C# log ###
Post the output from Output-->C# here

## Environment information ##

**VSCode version**: 1.45.0
**C# Extension**: 1.21.18

Dotnet Information
.NET Core SDK (reflecting any global.json):
Version: 3.1.202
Commit: 6ea70c8dca

Runtime Environment:
OS Name: Windows
OS Version: 10.0.18363
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\3.1.202\

Host (useful for support):
Version: 3.1.4
Commit: 0c2e69caa6

.NET Core SDKs installed:
1.0.0-preview1-002702 [C:\Program Files\dotnet\sdk]
1.0.0-preview2-003131 [C:\Program Files\dotnet\sdk]
1.0.4 [C:\Program Files\dotnet\sdk]
1.1.0 [C:\Program Files\dotnet\sdk]
2.0.2 [C:\Program Files\dotnet\sdk]
2.0.3 [C:\Program Files\dotnet\sdk]
2.1.2 [C:\Program Files\dotnet\sdk]
2.1.4 [C:\Program Files\dotnet\sdk]
2.1.602 [C:\Program Files\dotnet\sdk]
2.2.101 [C:\Program Files\dotnet\sdk]
3.1.202 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.18 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.18 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 1.0.0-rc2-3002702 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 1.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 1.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 1.1.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.0.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.18 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.2.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.4 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download

Visual Studio Code Extensions

|Extension|Author|Version|
|---|---|---|
|azure-account|ms-vscode|0.8.11|
|chat|karigari|0.33.0|
|csharp|ms-dotnettools|1.21.18|
|gitlens|eamodio|10.2.1|
|html-mason|viatsko|1.0.0|
|LogFileHighlighter|emilast|2.8.0|
|mssql|ms-mssql|1.9.0|
|powershell|ms-vscode|2020.4.0|
|rest-client|humao|0.23.2|
|sqlformatter|brenosolutions|0.0.7|
|sqltools|mtxr|0.21.7|
|vscode-azureappservice|ms-azuretools|0.16.5|
|vscode-azurefunctions|ms-azuretools|0.22.0|
|vscode-JS-CSS-HTML-formatter|lonefy|0.2.3|
|vscode-peacock|johnpapa|3.7.2|
|vscode-sql-formatter|adpyke|1.4.4|
|vscode-svgviewer|cssho|2.0.0|
|vsliveshare|ms-vsliveshare|1.0.2169|
|vsliveshare-audio|ms-vsliveshare|0.1.85|
|vsliveshare-pack|ms-vsliveshare|0.3.4|
|xml|DotJoshJohnson|2.5.0|;