Add connection-based configuration option that toggles automatic CCSID manipulation

**Is your feature request related to a problem? Please describe.**
This request is related to an issue I encountered and reported in:
[All files in stream file deployment path blindly set to CCSID 1208 after deploy #2126](https://github.com/codefori/vscode-ibmi/issues/2126).

Basically, the feature delivered with PR: [Set CCSID of deployed files to 1208 if needed #2015](https://github.com/codefori/vscode-ibmi/pull/2015) causes the CCSID of every file in the deployment path (including subdirectories) to be changed to 1208.
I have a use case where some files in the deploy hierarchy must maintain specific CCSIDs.

**Describe the solution you'd like**
I would like to have a new connection-based configuration option that toggles the automatic CCSID manipulation.

**Describe alternatives you've considered**
* Restructure legacy project to avoid issues (not possible)
* Post-deployment re-manipulation of CCSIDs

**Additional context**
Steps to reproduce the issue are provided in the original issue:
[All files in stream file deployment path blindly set to CCSID 1208 after deploy #2126](https://github.com/codefori/vscode-ibmi/issues/2126)