feat: support multi-person collaborative editing

[situ2001]

Types

• [x] 🎉 New Features

Background

This is an advance subject of ASoC 2022 and https://github.com/opensumi/core/issues/1103.

For more details, visit https://github.com/opensumi/core/issues/1097.

close https://github.com/opensumi/core/issues/1097

Milestone

• [x] Basic collaboration function
• [ ] Integration of user model
• [ ] Optimizing and refactoring

Changelog

• Init collaboration module
• Add basic functions of collaboration

[codecov[bot]]

Codecov Report

Base: 57.64% // Head: 57.69% // Increases project coverage by +0.04% :tada:

Coverage data is based on head (b1c84bf) compared to base (f1caaec). Patch coverage: 66.20% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1274      +/-   ##
==========================================
+ Coverage   57.64%   57.69%   +0.04%     
==========================================
  Files        1256     1269      +13     
  Lines       78425    78925     +500     
  Branches    16438    16511      +73     
==========================================
+ Hits        45210    45537     +327     
- Misses      30219    30376     +157     
- Partials     2996     3012      +16     

Flag	Coverage Δ
jsdom	52.53% <63.80%> (+0.06%)	:arrow_up:
node	15.80% <13.60%> (-0.02%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/collaboration/src/browser/index.ts	0.00% <0.00%> (ø)
packages/collaboration/src/node/index.ts	0.00% <0.00%> (ø)
...ackages/collaboration/src/browser/cursor-widget.ts	12.69% <12.69%> (ø)
...collaboration/src/browser/collaboration.service.ts	74.35% <74.35%> (ø)
...kages/collaboration/src/node/y-websocket-server.ts	76.19% <76.19%> (ø)
...ges/collaboration/src/browser/textmodel-binding.ts	76.43% <76.43%> (ø)
packages/collaboration/src/browser/color.ts	100.00% <100.00%> (ø)
packages/collaboration/src/common/commands.ts	100.00% <100.00%> (ø)
packages/collaboration/src/common/constants.ts	100.00% <100.00%> (ø)
packages/collaboration/src/common/index.ts	100.00% <100.00%> (ø)
... and 8 more

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[situ2001]

基本功能大致完成，操作效果如下

• 编辑

https://user-images.githubusercontent.com/28241963/180725600-e960c1f3-e2e9-4907-878d-4f58883cfe86.mov

• 新建文件，撤销与重做

https://user-images.githubusercontent.com/28241963/180726053-bbc5e31c-c36d-4cda-aa62-85331c298476.mov

[tyn1998]

🐮🍺

[situ2001]

Edit title for CI test

[situ2001]

告一段落，这里尝试简单提出后续的工作：https://github.com/situ2001/opensumi-core/issues/15

[erha19]

@situ2001 冲突处理一下