[build] Enable building the dev-tools for functional tests

- Factor out the dev-tools into a stand-alone, no-installed program
- Built the dev-tools if --enable-testing is specified
- Remove the --enable-dev-tools configure option
- Allow suffix on the binary name
- Update symlinks
- Cleanup Makefile

bin/thin_generate_metadata

@@ -1 +1 @@
-pdata_tools
+pdata_tools_dev