Generator Update on May, 24th

[nxf47831]

New features update:

•  SDKGEN-967Support to automatically hide doc files in Xtensa workspace

         Previously for Xtensa toolchain, developers need to use "hidden: true" in yml to hide documentation files in the                 workspace.
         Now generator can filter files by type attribute to bypass doc type file for Xtensa, which means files with .txt .rtf                 .html .htm .readme .pdf .Doxyfile .xls .css extensions will not be added into the Xtensa workspace.

•  SDKGEN-927Regard "hidden: true" in yml as "exclude: true" in <example>.xml as a workaround

         The Manifest and Mcuxpresso IDE don't support source level "hidden: true" now. SDK generator uses "exclude:               true" to represent "hidden: true" as a workaround.
         In manifest 3.6, the source level "hidden: true" will be formally supported, see KEX-5920.