Add SkipTable patterns parameter

[nminhquan]

Hi, as my application may arbitrarily created some tables which doesn't relate to Business table, this is good if we could add a parameter to skip those table out of the generated diagrams.
Please take a look and give me your idea.
Thanks

[sue445]

@nminhquan Thanks for the great patch!

But make integration_test is failed.
https://github.com/sue445/plant_erd/pull/161/checks?check_run_id=3890917142

Update help command in README.md

• plant_erd/Makefile

  Lines 78 to 80 in 5236e5e

  	.PHONY: integration_test
  	integration_test: build build-oracle
  	go test _integration/check_readme_test.go

• https://github.com/sue445/plant_erd/blob/5236e5ef19194a04b86165604bd3068c3a4953fd/_integration/check_readme_test.go

[nminhquan]

Hi @sue445 I have updated the README.md, the test result is passed on sqlite3, mysql and postgresql
`Running tool: /usr/local/go/bin/go test -timeout 30s -run ^TestReadme$ github.com/sue445/plant_erd/_integration -v

=== RUN TestReadme
=== RUN TestReadme/sqlite3
=== RUN TestReadme/mysql
=== RUN TestReadme/postgresql
--- PASS: TestReadme (0.43s)
--- PASS: TestReadme/sqlite3 (0.40s)
--- PASS: TestReadme/mysql (0.01s)
--- PASS: TestReadme/postgresql (0.01s)
PASS
ok github.com/sue445/plant_erd/_integration 0.666s
`

[sue445]

LGTM!

[sue445]

@nminhquan I released as v0.3.0 🚀

• https://github.com/sue445/plant_erd/releases/tag/v0.3.0
• https://github.com/sue445/plant_erd/blob/master/CHANGELOG.md#v030