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* Upgrade to Angular version 8
* Upgrade to Spring-Boot 2.1.6.RELEASE
* Fixed AC xApp policy page title is not aligned
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* Upgrade to Angular version 8
* Upgrade to Spring-Boot 2.1.6.RELEASE
* Fixed AC xApp policy page title is not aligned
* Add configuration-driven mock of E2 getNodebIdList
* Revise front-end components to use prefix 'rd'
* Add configuration-driven mock of E2 getNodebIdList
* Revise front-end components to use prefix 'rd'