react-map-gl-draw: use nebula.gl/edit-modes

[xintongxia]

This PR:

• use draw point, string, polygon modes from @nebula.gl/edit-modes

Next PR:

• deprecate react-map-gl-draw edit mode

[coveralls]

Pull Request Test Coverage Report for Build 1891

• 8 of 106 (7.55%) changed or added relevant lines in 8 files are covered.
• 864 unchanged lines in 24 files lost coverage.
• Overall coverage decreased (-15.3%) to 7.7%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
modules/react-map-gl-draw/src/edit-modes/base-mode.ts	0	1	0.0%
modules/react-map-gl-draw/src/index.ts	0	1	0.0%
modules/react-map-gl-draw/src/style.ts	0	3	0.0%
modules/react-map-gl-draw/src/mode-handler.tsx	0	16	0.0%
modules/react-map-gl-draw/src/edit-modes/utils.ts	2	21	9.52%
modules/react-map-gl-draw/src/edit-modes/editing-mode.ts	0	29	0.0%
modules/react-map-gl-draw/src/editor.tsx	0	29	0.0%

Files with Coverage Reduction	New Missed Lines	%
modules/react-map-gl-draw/src/mode-handler.tsx	1	0%
modules/react-map-gl-draw/src/editor.tsx	4	0%
modules/edit-modes/src/lib/draw-rectangle-mode.ts	9	0%
modules/layers/src/layers/elevated-edit-handle-layer.ts	11	0%
modules/layers/src/math.ts	11	0%
modules/react-map-gl-draw/src/edit-modes/editing-mode.ts	11	0%
modules/edit-modes/src/memoize.ts	12	0%
modules/edit-modes/src/lib/draw-circle-by-diameter-mode.ts	16	0%
modules/edit-modes/src/lib/draw-line-string-mode.ts	22	0%
modules/edit-modes/src/lib/composite-mode.ts	23	0%

Totals
Change from base Build 1889:	-15.3%
Covered Lines:	359
Relevant Lines:	4848

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💛 - Coveralls

[supersonicclay]

Surprising it says there are no conflicts. You probably want to rebase on the TypeScript changes before merging.