Enhanced filter capabilities

[brynary]

Via @rebeccafae -- It would be valuable to enhance qlty check --filter to support more syntaxes:

Analyze for one specific check:

# Any rubocop checks matching *RSpec/ContextWording*
qlty check --filter=rubcop:RSpec/ContextWording [FILE_OR_DIRECTORY]

Analyze for a wildcard match against checks:

# Any rubocop checks matching *Lint*
qlty check --filter=rubcop:Lint [FILE_OR_DIRECTORY]

(We can default to substring matching against rule keys)

Multiple filters

# Any rubocop checks matching *Lint* or *RSpec*
qlty check --filter=rubcop:{Lint,RSpec}

Braces can be used to denote grouping in order to differentiate from matching against other plugin names:

# All rubocop and eslint checks
qlty check --filter=rubcop,eslint