arg_parse for rust

Description

arg_pare is a tool to simplify the processing of command line arguments. It doesn't have any dependencies and the initialization is done at compile time.

Features

• Parsing of flags (Values set with -- which default is false and set to true by being used.)
• Parsing of parameters (Values mentioned after - which have their value(as a string) followed)
• Parsing of sub commands (which only one can be used and all following arguments are related to)
• Returning results instead of throwing unfinished error messages
• Simple creation of parser
• Ability to create parser as constant or static variable (at compile time)
• Ability to give of list of arguments (not using args from std::env::args())
• Ability to provide default values
• Ability to make Argument or subcommand required