bugfix: ignore validation of ArgvInput

[boesing]

Q	A
Bugfix	yes

Description

Ignores the validation of ArgvInput while detecting the --container option.

Caveat

This will only work if the --container option is being passed before the commands name or right after the command name.

If the command has arguments, the --container option must be preceding the commands very first argument.

OK

$ laminas --container=<path> <command> [<argument>]
$ laminas <command> --container=<path> [<argument>]

NOK

$ laminas <command> <argument> --container=<path> 

fixes #74

[boesing]

#75 would always detect the --container option, no matter where it is positioned. But it is indeed way more complex than this.