Improve (lib)appcontroller vs. (lib)ctl-utilities naming and packaging consistency

We need to improve consistency here ...

libappcontroller package actually builds/ships ctl-utilities.{so,a,pc) . This leads to inconsitencies

as ppl search for 'appcontroller' in their cmake conf files - but of course it is not found as only ctl-utilities is shipped.

dl9pf@elrond:~/AGL/WRITE/apps/agl-service-signal-composer> find /home/dl9pf/agl-sdk/7.0.1-armv7vethf-neon-vfpv4/ -name ctl-util
/home/dl9pf/agl-sdk/7.0.1-armv7vethf-neon-vfpv4/sysroots/armv7vehf-neon-vfpv4-agl-linux-gnueabi/usr/lib/pkgconfig/ctl-utilities.pc
/home/dl9pf/agl-sdk/7.0.1-armv7vethf-neon-vfpv4/sysroots/armv7vehf-neon-vfpv4-agl-linux-gnueabi/usr/lib/libctl-utilities.a
dl9pf@elrond:~/AGL/WRITE/apps/agl-service-signal-composer> find /home/dl9pf/agl-sdk/7.0.1-armv7vethf-neon-vfpv4/ -name appc
dl9pf@elrond:~/AGL/WRITE/apps/agl-service-signal-composer>

TLDR:  libappcontroller needs to ship 'appcontroller*.so' and not 'ctl-utilities*.so' . If we ship ctl-utilities*.so, we need to name it libctl-utilities.