Demonstrate that PyFluent can run transparently over REST or gRPC for solver settings

## Creating a simple PyFluent REST Settings interface

### Step 1 (exploration)

my-rest-client ---> fluent REST API for solver settings

my-rest-client: **BASIC PYTHON**

### Step 2

my-simple-launcher ---> my-session-class ---> flobject ---> my-rest-proxy ---> my-rest-client

my-simple-launcher: **TRIVIAL**
my-session-class: **SMALL**
flobject: **UNCHANGED**
my-rest-proxy: **SUBS FOR gRPC/IN-PROCESS**