Assorted fixes (#25)

* Updated imports for Netbox 3.6.1

Closes #21 and #23

* Changed Fieldtypes of Start and Expiration Date

Closes #22

* Bump to NetBox v3.6.1

* Add pyproject.toml and python workflow

---------

Co-authored-by: Manuel Hartung <manuel.hartung@atos.net>

netbox_slm/forms/__init__.py

@@ -1,4 +1,24 @@
-from .software_license import *
-from .software_product import *
-from .software_product_installation import *
-from .software_product_version import *
+from .software_license import (
+    SoftwareLicenseForm,
+    SoftwareLicenseFilterForm,
+    SoftwareLicenseImportForm,
+    SoftwareLicenseBulkEditForm,
+)
+from .software_product import (
+    SoftwareProductForm,
+    SoftwareProductFilterForm,
+    SoftwareProductImportForm,
+    SoftwareProductBulkEditForm,
+)
+from .software_product_installation import (
+    SoftwareProductInstallationForm,
+    SoftwareProductInstallationFilterForm,
+    SoftwareProductInstallationImportForm,
+    SoftwareProductInstallationBulkEditForm,
+)
+from .software_product_version import (
+    SoftwareProductVersionForm,
+    SoftwareProductVersionFilterForm,
+    SoftwareProductVersionImportForm,
+    SoftwareProductVersionBulkEditForm,
+)