code clean up,
changed package structure in two different implemtations,
changed the queries of sensor discovery
added sensor type data
discover sensors method 2 implementation
code clean up
added GetApplication implementation
added getavailableappids implentation
added getservicestatus implementation
code clean up
changed radius initial value
Merge branch 'ait-develop' of https://github.com/OpenIotOrg/openiot.git
into ait-develop

Conflicts:
	modules/scheduler/scheduler.core/src/main/java/org/openiot/scheduler/core/api/impl/DiscoverSensorsImpl.java
	modules/scheduler/scheduler.core/src/main/java/org/openiot/scheduler/core/api/impl/RegisterServiceImpl.java
	modules/scheduler/scheduler.core/src/main/java/org/openiot/scheduler/core/api/impl/SensorMetaData.java
	modules/scheduler/scheduler.core/src/main/java/org/openiot/scheduler/core/rest/SchedulerRsControler.java