nitdbg: Added place trace function

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>
nitdbg: Can untrace an object

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>
nitdbg: Added function to place a trace

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>
nitdbg: Added untrace function

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>
stdlib: Char, added functions is_alphanumeric and is_alpha

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>
nitdbg: Added function to parse statements and get identifiers

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>
nitdbg: Added trace detection in main loop

Signed-off-by: Lucas BAJOLET <r4pass@hotmail.com>