enhancement(sg): added filters on sg data source

[ujjwal-ibm]

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Relates OR Closes #5386

Output from acceptance testing:

$ make testacc TEST=./ibm/service/vpc TESTARGS='-run=TestAccIBMISSecurityGroupDatasource_Filters'
=== RUN   TestAccIBMISSecurityGroupDatasource_Filters
--- PASS: TestAccIBMISSecurityGroupDatasource_Filters (146.92s)
PASS
ok      github.com/IBM-Cloud/terraform-provider-ibm/ibm/service/vpc     149.238s