proposed: schemas are placed in src/schema (module)

separating schemas from main.py might be a good idea since the parser
will support more fabrication methods, but since every method has its
dictionary is it even possible?

src/main.py

@@ -5,6 +5,7 @@ from getpass import getpass
 from APIHandler import APIHandler
 from classes import *
 from PIL import Image
+# from schema import pld_deposition
 
 
 def call_entrypoint_from_elabid(elabid):

src/schema/pld_deposition.py

@@ -0,0 +1,3 @@
+class Prova:
+    def __init__(self):
+        self.hello = "Hello world"