netsurf-buildsystem-1.9-bp156.3.1

- Add patch to not expect which to be in /bin:
  * hardcoded.patch

- Add patch to not expect which to be in /bin:
  * hardcoded.patch

- update to 1.9:
  * openbsd support
  * Enable sanitize target for new gccs and clang
  * cope with Apple clang version
  * Add support for INCLUDEDIR
  * Fix Build/HOST confusion
  * Fix quotation in case expansion for make selection

- Try to parse with spec-cleaner.

- Initial import of netsurf-buildsystem, inspired by Fedora package