adding relaxed type-equivalency to ReParameter()

[cmstein]

Signed-off-by: Clifford Stein cstein@imageworks.com

Description

Allows ShadingSystem->ReParameter() to use the same relaxed rules as SS->Parameter()

Tests

no changes in tests

Checklist:

• [x] I have read the contribution guidelines.
• [x] I have previously submitted a Contributor License Agreement.
• [x] I have updated the documentation, if applicable.
• [x] I have ensured that the change is tested somewhere in the testsuite (adding new test cases if necessary).
• [x] My code follows the prevailing code style of this project.

[lgritz]

@cmstein, can you please fix the clang-format (a line each in typedesc.cpp and shadingsys.cpp) and also edit the last commit you have to be sure it has the "Signed-off-by:" message for the DCO? Thanks.

I tried to do this myself, but for some reason can't seem to push it back to your branch (despite the message saying "Add more commits by pushing to the relaxed_equiv branch on cmstein/OpenShadingLanguage.", which I should be able to do as the maintainer of the project. I'm not sure why this doesn't work.

[cmstein]

fixed clang-format issues and squashed the commits