Improve jclouds handled instance types synchronization with node candidates retrieval

Improve acquiring nodes in deployment phase

Add functional tests to the RMConnectionHelper and the SchedulerConnectionHelper classes

See merge request !14

Fix ubuntu <20 versions apt lock issue in App deployments

* Fix t4g hardware type handling and command tasks creation

* Fix start creation

Improve the connection to the Scheduler and RM

See merge request !13

Mohamed Khalil LABIDI authored Feb 17, 2021 and Mohamed Khalil Labidi committed Feb 17, 2021

* Testing chargeCloudGLsDB method

* Try readerFor instead of forType when creating the object reader

* Cleaning branch code

(cherry picked from commit fd50e6a1f3e52541785c5a029f09dcbdafec8c13)

Feature application graph

See merge request !12

Fix Node Sources deployment according to server updates

Fix URI not hierarchical through temp files

Fix threaded-safe Client

Fix Hashmap to Json casting in updateNodeCandidate method

See merge request !10