Export_templates mime_type when imported from Git server

[gmoisio]

Environment

• Python version: 3.8.1
• Nautobot version: v1.0.2

Proposed Functionality

Unlike the creation of export_templates in the Nautobot GUI interface, when using synchronization with a Git server, the mime_type is forced to text / plain which does not allow html exports to be made.

Use Case

To build nice html5 exports, they must be flagged with text/html mime type.
It would perharps be possible to get mime type from extension or prefix in a name such as export_templates/ipam/vlan/html_export.html

Thanks
Regards

[smk4664]

@gmoisio There is a PR in for this that is targeting 1.1.0. The mime_type will be selected from the file extension.