Added file and directory tools, system tool
Added file and directory tools, system tool

New tools:
dir-copy <orig> <copy>: Copys the <orig> directory to the <copy>
location.
dir-create <dir>: Creates the directory.
file-create <file>: Creates the file. Removes its content if it exists.
file-append <file> <string>: Appends the <string> to the <file> (Without
newline).
file-append-newline <file>: Appends a newline to the <file>.
system: Runs a system command if allowed.
ignore: Does nothing. Used for commands in config files.

AntLang-Software/MuLPaM