Update COmanage QDL scripts

[jjg-123]

There are QDL scripts for COmanage that use the has_keys function. This function is deprecated now since it is really just a pain in the neck to use. Only COmanage uses it, nears as can be told. Moreover, several of the scripts could be rewritten to be a lot less verbose. For instance, on DEV in /var/local/cilogon_service/oa4mp-server/qdl/COmanageRegistry/default/ldap_claims.qdl from line 43 forward, the entire script should be equivalent to

claims. := claims. ~ get_claims(ldap_claim_source., claims.sub);
rename_keys(claims., config_params.ldap_to_claim_mappings, true);

A more minimal change, however is to replace line 74:

has_keys(claims., [i]).0;
with

has_key(i, claims.);