GHA: Install MT5 and run PrintPaths

[kenorb]

• Branch: gha-install-mt5
• Build: 639582167
• Initial work in #185.
• To test build, run: docker build --target ea-tester-with-mt5 .
• See: Dockerfile
• To run ScriptPrintPaths locally using MT4, run in tests/: docker-compose run ScriptPrintPaths
• To run using MT5, run in tests/: docker-compose run -e MT_VER=5.0.0.2361 -e OPT_VERBOSE=1 -e OPT_TRACE=1 ScriptPrintPaths.
• To run Bash: docker-compose run -e MT_VER=5.0.0.2361 ScriptPrintPaths bash, then ./eval.sh install_mt.

We need to configure folders properly for each platform. E.g.

tests $  docker-compose run -e MT_VER=5.0.0.2361 -e OPT_TRACE=1 ScriptPrintPaths
...
+ check_files
+ '[' '' '!=' default ']'
+ '[' -w '/home/ubuntu/.wine/drive_c/Program Files/MetaTrader 5/Bases/Default/History/' ']'
+ '[' -s '' ']'
++ on_error