Upgrading to Angular 13, Cesium 1.101.0

[arye97]

Features

• Upgraded project to Angular 13 LTS
• Upgraded project to latest Cesium Version, 1.101.0
• Upgraded typescript version to 4.4.3
• Added util library which angular uses now

  Fixes

• Removed cyclical dependency in cesium service to fix partial ivy compilation error, since now Angular 13 compiles using ivy not ngcc
• Added common module to demo app.module for latest angular compatibility
• Fixed issue in ng-add schematics where "moduleSource" was not defined in the concatenation
• Change TSLint to ESLint, as TSLint is now unsupported/deprecated
• Changed the CircleCI Node docker base image to 16

Running locally, all things build as expected. Demo runs as before.

As angular 13 now builds with partial ivy compared to ngcc before, the circular dependency between AcMapComponent and CesiumService was no longer allowed, so this was changed to be any type. However it still is the AcMapComponent under the hood, so works as before.

Had to make some edits to the eslint rules as they're more strict now in ESLint and specifically the angular 13 rules. They required all components to begin with ac- in their selector, I chose to not do this as it would be a breaking change for people upgrading.

Checklist:

• [ ] If this PR is a new feature, please reference an issue where a consensus about the design was reached (not necessary for small changes)
• [x] Make sure all changes are documented in CHANGESLOG.md and README.md

[arye97]

@shayb-datumate @aleks-datumate I'm unsure who's able to merge in this PR but I see you two completed the last PR two weeks ago #439, can you please check this one?

@eitanfr @davidyaha

[arye97]

Closing as no response