MAINTAINERS: add 2 new keys: tags, tests

Add two new keys: tags, tests.

tags for aligning with what we use in tests and samples and tests to
associate areas and components with tests.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

scripts/get_maintainer.py

@@ -191,6 +191,8 @@ class Maintainers:
             area.collaborators = area_dict.get("collaborators", [])
             area.inform = area_dict.get("inform", [])
             area.labels = area_dict.get("labels", [])
+            area.tests = area_dict.get("tests", [])
+            area.tags = area_dict.get("tags", [])
             area.description = area_dict.get("description")
 
             # area._match_fn(path) tests if the path matches files and/or
@@ -403,12 +405,16 @@ def _print_areas(areas):
 \tcollaborators: {}
 \tinform: {}
 \tlabels: {}
+\ttests: {}
+\ttags: {}
 \tdescription: {}""".format(area.name,
                             area.status,
                             ", ".join(area.maintainers),
                             ", ".join(area.collaborators),
                             ", ".join(area.inform),
                             ", ".join(area.labels),
+                            ", ".join(area.tests),
+                            ", ".join(area.tags),
                             area.description or ""))
 
 
@@ -479,7 +485,7 @@ def _check_maintainers(maints_path, yaml):
 
     ok_keys = {"status", "maintainers", "collaborators", "inform", "files",
                "files-exclude", "files-regex", "files-regex-exclude",
-               "labels", "description"}
+               "labels", "description", "tests", "tags"}
 
     ok_status = {"maintained", "odd fixes", "unmaintained", "obsolete"}
     ok_status_s = ", ".join('"' + s + '"' for s in ok_status)  # For messages
@@ -504,7 +510,7 @@ def _check_maintainers(maints_path, yaml):
                  "for area '{}'".format(area_name))
 
         for list_name in "maintainers", "collaborators", "inform", "files", \
-                         "files-regex", "labels":
+                         "files-regex", "labels", "tags", "tests":
             if list_name in area_dict:
                 lst = area_dict[list_name]
                 if not (isinstance(lst, list) and