* gbproxy: Add testcase for MS-REGISTRATION ENQUIRY
* gbproxy: Test cases for DUMMY-PAGING-PS
* gbproxy: Add test case for PAGING-PS-REJECT
* Osmocom_Gb_Types: Add templates for various BSSGP PDU types
* Osmocom_Gb_Types: Add 3GPP spec chapters; unify formatting
* gbproxy: Test PS-PAGING by IMSI (without P-TMSI)
* library/L1CTL_Types: add missing template restrictions
* BTS_Tests_SMSCB: use proper templates for RSL channel number
* BTS_Tests: turn 'l1ctl_ma_def' into 'c_arfcn_list'
* BTS_Tests: introduce and use as_l1_sacch_l1h()
* bts: update some expectations in expected-results.xml
* remsim: Two new bankd test cases about slotmap re-creation
* resmim: Adjust TC_createMapping_busySlot to current bankd code
* remsim: Reset the bankd-side state at start of test