Added batch files for compilation

- Added batch files needed for compiling C in Notepad++.
- Deleted "putty commands.cpp" (not needed anymore).
Added open_parenthesis logic

- Removed closed_braces variable.
- Renamed opened_braces to open_braces.
- Renamed opened_parenthesis to open_parenthesis.
- Improved logic to remember previous char after encountering the word
"main".
- Added logic for open_parenthesis.