Add new serive CAPIF mgmt, update client side packages and implement GET method to get the all services

Replace some info logs by debug logs; Bug fixed in UEs inc/dec process; Enhance meep-sandbox-api swagger file (UE datastructure)

add http logs endpoint in the meep-sandbox-api

See merge request mec/AdvantEDGE!20

add the anonymous functions to initialize the service and metrics endpoints as...

See merge request mec/AdvantEDGE!19

# Conflicts:
#   go-apps/meepctl/cmd/deploy.go
#   tools/HOWTO
#   tools/generate_stub.sh

Add test scenarios for application support Subscriptions; change...

See merge request mec/AdvantEDGE!18

# Conflicts:
#   tools/HOWTO

Stf678 task1 2 mec030

See merge request mec/AdvantEDGE!17