Incorporated method to MetadataHarvester class to collect project level metadata.

src/metadata_review_lib.py

@@ -322,12 +322,16 @@ class MetadataHarvester:
             parent_files = []
         self.parent_files = parent_files
         self.metadata = {
+            "project": {},
             "sample": {},
             "environment": {},
             "instruments": {},
             "datasets": {}
         }
 
+    def add_project_info(self, key_or_dict, value=None):
+        self._add_info("project", key_or_dict, value)
+
     def add_sample_info(self, key_or_dict, value=None):
         self._add_info("sample", key_or_dict, value)
 
@@ -365,6 +369,7 @@ class MetadataHarvester:
 
     def clear_metadata(self):
         self.metadata = {
+            "project": {},
             "sample": {},
             "environment": {},
             "instruments": {},