Add full parameter support to CommonsHelperConfigParser
This currently "excludes" all the special case syntax in so far that
most of this information is thrown away. However, the parser must be
able to understand all this syntax right away. Otherwise some of the
special syntax will show up in the replacements.
Bug: T194505
Change-Id: Ia12b6b6d87842185df483eb457623bd2cbcce0c5