Changed recipe_modules base paths to be abstract entities in their own right.

scripts/slave/recipes/skia/skia.expected/Perf-ChromeOS-Daisy-MaliT604-Arm7-Release.json

 [
   {
     "cmd": [
       "git",
       "fetch"
     ],
     "cwd": "[SLAVE_BUILD]/skia",
     "name": "git fetch"
   },
   {
@@ skipping 88 matching lines @@
       "22",
       "root@192.168.1.134",
       "mkdir",
       "-p",
       "/usr/local/skiabot/bin"
     ],
     "name": "mkdir .../skiabot/bin"
   },
   {
     "cmd": [
-      "[BUILD]/scripts/slave/recipe_modules/skia/resources/scp_dir_contents.sh",
+      "RECIPE_MODULE[skia]/resources/scp_dir_contents.sh",
       "[SLAVE_BUILD]/skia/resources",
       "root@192.168.1.134:/usr/local/skiabot/skia_resources"
     ],
     "name": "scp [SLAVE_BUILD]/skia/resources"
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
@@ skipping 49 matching lines @@
       "@@@STEP_LOG_LINE@python.inline@    print \"%s exists but is not a dir\" % path@@@",
       "@@@STEP_LOG_LINE@python.inline@    sys.exit(1)@@@",
       "@@@STEP_LOG_LINE@python.inline@  os.makedirs(path, mode)@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
-      "[BUILD]/scripts/slave/recipe_modules/gsutil/resources/gsutil_wrapper.py",
+      "RECIPE_MODULE[gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "--force-version",
       "3.25",
       "--",
       "cp",
       "-R",
       "gs://chromium-skia-gm/playback_42/skps",
       "[SLAVE_BUILD]/playback"
     ],
@@ skipping 28 matching lines @@
       "22",
       "root@192.168.1.134",
       "mkdir",
       "-p",
       "/usr/local/skiabot/skia_skp/skps"
     ],
     "name": "mkdir .../skia_skp/skps"
   },
   {
     "cmd": [
-      "[BUILD]/scripts/slave/recipe_modules/skia/resources/scp_dir_contents.sh",
+      "RECIPE_MODULE[skia]/resources/scp_dir_contents.sh",
       "[SLAVE_BUILD]/playback/skps",
       "root@192.168.1.134:/usr/local/skiabot/skia_skp/skps"
     ],
     "name": "scp [SLAVE_BUILD]/playback/skps"
   },
   {
     "cmd": [
       "ssh",
       "-p",
       "22",
@@ skipping 81 matching lines @@
       "MaliT604",
       "model",
       "Daisy",
       "os",
       "ChromeOS"
     ],
     "name": "nanobench"
   },
   {
     "cmd": [
-      "[BUILD]/scripts/slave/recipe_modules/skia/resources/scp_dir_contents.sh",
+      "RECIPE_MODULE[skia]/resources/scp_dir_contents.sh",
       "root@192.168.1.134:/usr/local/skiabot/skia_perf",
       "[SLAVE_BUILD]/perfdata/Perf-ChromeOS-Daisy-MaliT604-Arm7-Release/data"
     ],
     "name": "scp /usr/local/skiabot/skia_perf"
   },
   {
     "cmd": [
       "python",
       "-u",
-      "[BUILD]/scripts/slave/recipe_modules/skia/resources/upload_bench_results.py",
+      "RECIPE_MODULE[skia]/resources/upload_bench_results.py",
       "Perf-ChromeOS-Daisy-MaliT604-Arm7-Release",
       "5",
       "[SLAVE_BUILD]/perfdata/Perf-ChromeOS-Daisy-MaliT604-Arm7-Release/data",
       "164710",
       "[DEPOT_TOOLS]/third_party/gsutil/gsutil"
     ],
     "cwd": "[SLAVE_BUILD]/skia",
     "name": "Upload Nanobench Results"
   }
 ]