update package.xml
refactro ArrayUtilsTest
update test case name
update testcase name
Fix SchemaFinder test
improve getColumnNames performance
Cache more metadata in schema proxy file.
update class templates
Add ClassStaticVariable
use static cache to retrieve column names
Improve column operation performance
test schema iteration
Add model_name const
override getModelName method so that we can be faster
save & use moddel_namespace const