Qcompute

Added

- New cloud simulators:
- cloud_baidu_sim2_water
- cloud_baidu_sim2_earth
- cloud_baidu_sim2_thunder
- cloud_baidu_sim2_heaven
- Examples update;
- Related docs update;
- Requirements update.

Changed

- Local file/dir name;

Deprecated

- cloud_baidu_sim2;
- New name is cloud_baidu_sim2_water

Added

- Update doc links;
- Examples update;
- Related docs update;
- Requirements update.

Added

- First commit;
- QCompute SDK contains quantum toolkits, simulator, examples and docs.