Feature: input source wildcard

[dionjwa]

All input pipes some-input from all (*) metaframes go to the local input something-else:

"inputs": [
	{
		"metaframe": "*",
		"target": "something-else",
		"source": "some-input"
	}
]

All input pipes (*) from all (*) metaframes go to the local input something-else:

"inputs": [
	{
		"metaframe": "*",
		"source": "*",
		"target": "something-else"


	}
]

All input pipes (*) from all (*) metaframes go to the local input with the same name as the source:

"inputs": [
	{
		"metaframe": "*",
		"source": "*"
	}
]