[IMP] core: enable tests when test-tags are set
[IMP] core: enable tests when test-tags are set

The goal here is to keep the default behaviour of test-enable and test-tags
except that test-tags will set test-enable to true if set.
- +standart must stay the default test-tags if none are set
	(only usefull if test-enable is set)
- should work no matter the order of "test-tags" and "test-enable"
	options  in args
- knowing the fact that for strange reason, _parse_config is called twice

PR: #27255

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo