version.json patch command supports required field

[robertmaynard]

Description

When a patch fails, rapids-cmake will log the failure under $CMAKE_BUILD_DIR/rapids-cmake//log and continue. Now with this change rapids-cmake will collect all patches with the required field set to true that fail and throw an error.

Fixes #699

Checklist

• [x] I am familiar with the Contributing Guidelines.
• [x] New or existing tests cover these changes.
• [x] The documentation is up to date with these changes.

[robertmaynard]

/merge