ref issue akamensky#94 - Updated module name

Add helper method to check if file descriptor has been initialized wi…

…th data (akamensky#89)

Arg can return the result pointer (akamensky#84)

* Arg interface can return result pointer

* Arg interface can return result pointer

* Add examples & documentation

* add docstring

Co-authored-by: verburgs <joshua.verburg-sachs@hpe.com>
Co-authored-by: vsachs <vsachs@hpe.com>

sub-command-help (akamensky#72)

* Saving

* Saving

* Updated to use help first in subcommands

* Updated tests for more coverage

* More testing updates

* Updated tests

Co-authored-by: jackh <jackh@pop-os.localdomain>

add a boolean flag to message2string which indicates if the result st…

…ring is ready to be returned + add tests (akamensky#60)

Custom help (akamensky#50)

* Finishes addressing issue akamensky#29

Adds a Settings struct for creating parsers/commands with
NewParserWithSettings or NewCommandWithSettings.

Settings
	HelpDisabled -	defaults false, set true to not generate a help
			argument for parser/command
	HelpSname -	short name for the parser/command help argument.
			Can be left empty
	HelpLname -	long name for the parser/command help argument.
			Leaving empty forces use of -h/--help when
			HelpDisabled is false
	NoExitOnHelp -	defaults false, set true to not exit on help
			argument being parsed

Should resolve all outstanding help argument issues.

* Finishing Issue akamensky#29

Fixed merge conflict error due to check function return type change confusion.

* Updated Settings Object to multiple function calls

Added functions:
	DisableHelp
	SetHelp
	ExitOnHelp

Added Command.exitOnHelp

Added more tests to increase code coverage

* Updated no help example

Fix coveralls link (akamensky#49)

Move to go modules