Implement functionalities I ignored

[MiSawa]

• halt, halt_error, halt_error(exit_code)
• $__loc__
• $ENV, env
• builtins
• Missing regex filters #89
• Math functions
• Implement input and Inputs #116
• debug, stderr
• input_filename, input_line_number
• Implement --stream #133
• Streaming functions
• Modules
• Colors Print colorized json #163, Support for configuring colors with the $JQ_COLORS environment variable #166
• .... a lot of cli args