Add restrict list option to pgbedrock configuration

[dmoore1989]

The purpose of this pull request is to allow users to restrict tables and sequences when they add privileges for the entire schema (using schema_name.*). This will allow the user to blacklist tables that they do want to include in the standard privilege list instead of just the standard

Users can add these restricted tables by doing the following in the configuration yaml file:

 user:
            privileges:
                tables:
                    read:
                        - schema0.*
                    restrict:
                        - schema0.table2 // user can read all tables except for table 2 in schema 0

[coveralls]

Pull Request Test Coverage Report for Build 189

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 14 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.8%) to 96.445%

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Files with Coverage Reduction	New Missed Lines	%
/opt/pgbedrock/spec_inspector.py	14	94.44%
<!--	Total:	14		-->

Totals
Change from base Build 179:	-0.8%
Covered Lines:	2550
Relevant Lines:	2644

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💛 - Coveralls