#7 New forms

* refactors large forms.py into forms/modalForms.py and forms/forms.py
* refactors custom input fields into intervention/inputs.py

intervention/inputs.py

@@ -0,0 +1,15 @@
+from django import forms
+
+
+class DummyFilterInput(forms.HiddenInput):
+    """ A dummy input widget
+
+    Does not render anything. Can be used to keep filter logic using django_filter without having a pre defined
+    filter widget being rendered to the template.
+
+    """
+    template_name = "konova/custom_widgets/dummy-filter-input.html"
+
+
+class TextToClipboardInput(forms.TextInput):
+    template_name = "konova/custom_widgets/text-to-clipboard-input.html"