Feature/installer

[dutchie032]

fixes #213

A simple installer for dcs-grpc.
Version agnostic for simplicity and minimal rebuilding effort.

Can write some info in main README.md if required, but can also understand if main maintainers wants to update himself after creating the artifact.

installer/Readme.md:

Installer of DCS-gRPC

To Build

#pyinstaller --clean --onefile -y -n "DCS-gRPC-Installer" .\main.py

What

1. It collects all releases from the Github api.
2. Makes the user select the version (latest probably 99% percent of the time), but fallback possibilities might be nice.
3. Downloads the .zip artifact and unzips in install location (selected by user)
4. Updates the missionscripting.lua file.
   • MissionScripting.lua needs to be selected. No other lua file will be accepted as DCS only reads that file.
   • dofile(lfs.writedir()..[[Scripts\DCS-gRPC\grpc-mission.lua]]) is on the first line below dofile('Scripts/ScriptingSystem.lua')
   • all other dofile(lfs.writedir()..[[Scripts\DCS-gRPC\grpc-mission.lua]]) or similar (grpc-mission.lua) will be removed so in case of reinstall any possible error will be reset

[dutchie032]

I saw no CD action that actually build the artifact so kinda assumed it was a manual artifact upload.
Please correct me if I'm wrong and I will also create a CD for publishing the .exe.

I could only find a ci.yml, but didn't seem to upload the .zip artifact.
If there is another .yml file, or I overlooked it in ci.yml please let me know

[rurounijones]

Given how this is structured I think this would be better suited to a separate Installer repo in the DCS-gRPC project group. The advantages being that you can then update it on your own cadence and not require PR reviews from us in a language we are not necessarily up-to-date on.

When we do a rust-server release we can then also include a link to the installer for people who want to use it.

Whaddaya think?

[rurounijones]

I may be missing something but won't this add the GRPC line every time the program is run? (e.g. someone using it to update versions)