Add ability to define dependy on a group of tasks / group of dependencies

[brokenmass]

example:
dependsOn: ['^#build'],

possibly:
allow name wildcards dependsOn: ['libraries*#build'],
allow 'categories' dependsOn: ['__dependencies__*#build'],
allow task wildcards dependsOn: ['^#build:*'],

[branchseer]

This is on our radar and high priority.