add dependencies and remove postgis

setup.py

@@ -39,7 +39,10 @@ _install_requires = [
     'python-dateutil>=2.8.0',
     "ramsis.datamodel",
     "SQLAlchemy>=1.2.10",
-    "webargs==5.4.0", ]
+    "webargs==5.4.0",
+    "PyYAML", 
+    "pandas",
+    "SeismoStats", ]
 
 _extras_require = {
     'doc': [

worker/db/db_init.py

@@ -55,8 +55,6 @@ class DBInitApp(App):
         exit_code = ExitCode.EXIT_SUCCESS
         try:
             engine = create_engine(self.args.db_url)
-            with engine.connect() as conn:
-                conn.execute(text('create extension if not exists postgis;'))
 
             if self.args.force:
                 self.logger.debug(