[7.9.0] Basic syntax for `exclude` syntax in use rules

[iromeo]

Add basic support:

• parsing
• highlighting

In case like:

use rule * from test exclude b, d

Introduced in snakemake: 7.9.0 (2022-07-19)

Features

• make it possible to exclude rules that will be imported when using ‘use rule’ statement (#1717) (d9e0611)