It parse input argument vector to vector of string truple

Example:

use arg_pars;

fn main() {
    let arg_vec = arg_pars::parse(std::env::args().collect());
    for arg in arg_vec {
        println!("{}:{}", arg.0, arg.1);
    }
}

input: ...> .\main.exe --b --c --s=45 -f=this is long name of file
output: main.exe:true
        b:true
        c:true
        s:45
        f:this_is_long_name_of_file