Make command line interface to run TcBlack

[Roald87]

• [x] Implement safe mode
  • [x] Get hash before and after compile
• [x] When selecting a single file, find plcproj and sln file automatically
• [x] Read TcPou file(s)
• [x] Reformat files
• [x] Make a .bak copy of the original file
• [x] Write reformatted code in in original file

[Roald87]

There is no convenient way to see if the build failed or not. They only way I think is to inspect the build.log file and check the last line:

========== Build: 0 succeeded or up-to-date, 1 failed, 0 skipped ==========