Add schema and consistency checks for all databases for TPROC-C and TPROC-H

[sm-shaw]

As described in #659 PR adds another GUI option and checkschema CLI command to run the following tests to validate the schema and also to verify that the data is consistent after running a test. All databases have been checked to verify that this is the case in a default scenario.

TPROC-C
#Check 1 Database Exist
#Check 2 Tables Exist
#Check 3 Warehouse count in schema is the same as dict setting
#Check 4 Tables are indexed
#Check 5 Tables are populated
#Check 6 Stored Procedures Exist
#Consistency check 1
#Consistency check 2
#Consistency check 3
#Consistency check 4

TPROC-H
#Check 1 Database Exist
#Check 2 Tables Exist
#Check 3 supplier count in schema is the same as dict setting
#Check 4 Tables are indexed
#Check 5 Tables are populated
#Consistency check

[abondvt89]

Merging after reviews and approval of the three members of the code maintenance team.