Organize DB Schema Migration Code and DB Init Checks (#842)

Create Schema Manager and propagate contexts into the DB calls downstream.
Add checks at controller startup and database init for correct schema version and schema migration dirty bit being set.

internal/errors/code.go

@@ -56,10 +56,14 @@ const (
 	NotNull              Code = 1001 // NotNull represents a value must not be null error
 	NotUnique            Code = 1002 // NotUnique represents a value must be unique error
 	NotSpecificIntegrity Code = 1003 // NotSpecificIntegrity represents an integrity error that has no specific domain error code
-	MissingTable         Code = 1004 // Missing table represents an undefined table error
+	MissingTable         Code = 1004 // MissingTable represents an undefined table error
 	RecordNotFound       Code = 1100 // RecordNotFound represents that a record/row was not found matching the criteria
 	MultipleRecords      Code = 1101 // MultipleRecords represents that multiple records/rows were found matching the criteria
 	ColumnNotFound       Code = 1102 // ColumnNotFound represent that a column was not found in the underlying db
 	MaxRetries           Code = 1103 // MaxRetries represent that a db Tx hit max retires allowed
 	Exception            Code = 1104 // Exception represent that an underlying db exception was raised
+
+	// Migration setup errors are codes 2000-3000
+	MigrationIntegrity Code = 2000 // MigrationIntegrity represents an error with the generated migration related code
+	MigrationLock      Code = 2001 // MigrationLock represents an error related to locking of the DB
 )