[static_runtime] Add script to auto-generate view ops (#77105)
Summary:
Add script to go through view ops in "native_functions.yaml" and auto-register them into static runtime and auto-generate op unit tests for each.
Overall there are 96 grouped view ops, among which 21 is already registered by hand; 9 (including sparse ops/training related ops etc.) are not the target of static runtime; 30 has list args or list ret; and 7 has non-basic types such as "Dimname", "MemoryFormat", etc. In summary, this script auto-generate 29 view ops for now.
Run `buck run //caffe2/torch/fb/jit:gen_static_runtime_ops` to generate static runtime ops, and the results with this script are,
```
total grouped native ops: 1582
grouped native ops with out variant: 548
generated functions groups with out variant: 241
view grouped native ops: 96
generated functions view groups: 29
overall generated : 270
```
The generated view ops are added in D36258968
Test Plan:
Generate static runtime ops: `buck run //caffe2/torch/fb/jit:gen_static_runtime_ops`
Unit tests: `buck run mode/opt //caffe2/benchmarks/static_runtime:static_runtime_cpptest`
Differential Revision: D36258767
Pull Request resolved: https://github.com/pytorch/pytorch/pull/77105
Approved by: https://github.com/mikeiovine
