[Map] Add Rectangle support

[Valmonzo]

Q	A
Bug fix?	no
New feature?	yes
Docs?	yes
Issues
License	MIT

Adding a new Rectangle element to Map following GoogleMaps and Leaflet features.

[github-actions]

📊 Packages dist files size difference

Thanks for the PR! Here is the difference in size of the packages dist files between the base branch and the PR.
Please review the changes and make sure they are expected.

File	Before (Size / Gzip)	After (Size / Gzip)
Map
abstract_map_controller.d.ts	5.75 kB / 1.25 kB	6.62 kB+15% 📈 / 1.36 kB+9% 📈
abstract_map_controller.js	4.48 kB / 1.14 kB	5.01 kB+12% 📈 / 1.2 kB+6% 📈
Map (Bridge Google)
map_controller.d.ts	3.03 kB / 866 B	3.35 kB+11% 📈 / 915 B+6% 📈
map_controller.js	12.22 kB / 2.65 kB	13.38 kB+9% 📈 / 2.81 kB+6% 📈
Map (Bridge Leaflet)
map_controller.d.ts	2.63 kB / 781 B	2.93 kB+12% 📈 / 829 B+6% 📈
map_controller.js	11.06 kB / 2.77 kB	12.19 kB+10% 📈 / 2.92 kB+6% 📈