Fix product search refinements

[bendvc]

Api called that used the 'refine' optional parameter didn't process the refine_1...refine_n options, only the 'refine' option. This pr updates the code so that those options are processed and sent to the server.

Status: Opened for visibility

Changes

• Update product search call optional params parsing
• Update content search call optional params parsing
• Removed a incomplete test that had debugging logs in it
• Update docs

[bendvc]

Comment, this change wasn't required. The client provided this functionality, I was just using it incorrectly.

[kevinxh]

More note:

For SFCC OCAPI product search, we can use a comma to specify multiple refinements, i.e. refine=color=black,price=10.