bts: Move struct gprs_rlcmac_bts and other structs into a bts.h
Begin to make the BTS a real C++ object with real responsibilities.
The biggest issue will be the pcu_vty.c that might not like C++
at all.
diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index 26564be..e70de55 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -37,6 +37,7 @@
#include <gprs_debug.h>
#include <gprs_bssgp_pcu.h>
#include <pcuif_proto.h>
+#include <bts.h>
#include <tbf.h>
// FIXME: move this, when changed from c++ to c.