Add SQUARE(n) macro
Refactor the project into a nested project
cio module for I/O as C string, i.e. null-terminated char array
- stream_read_line function to read stream line by line
- stream_read_all function to read all text from stream
- cstring_read_line function to read C string line by line
path module for file path cross Windows and Unix
- base_name function to get base name of a file path
- dir_name function to get directory name of a file path
- ext_name function to get file extension of a file path