Ninja: Use `ccmake` for `edit_cache`

Takumi Nakamurarequested to merge
chapuni/cmake:chapuni/edit_cache/20210627 into master

I know at least one issue;

  1. When build.ninja is dirty, ninja edit_cache regenerates build.ninja before ccmake.

To resolve this, ninja-build shall process edit_cache in RebuildManifest().

Topic-rename: ninja-edit_cache

Edited by Brad King

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