Missing tags in available column selection from IP range table

[cybarox]

NetBox version

v3.0.8

Python version

3.8

Steps to Reproduce

1. Create ip-range with tag
2. open ip-range table
3. click configure table
4. tags is missing from available column seletion

Expected Behavior

tag column can be selected under available columns

Observed Behavior

tag column is missing

[jeremystretch]

Looks like 'tags' is missing from IPRangeTable.Meta.fields.

[cybarox]

@jeremystretch I've created a pull request for this issue

[jeremystretch]

Thanks @cybarox!

[cybarox]

@jeremystretch I've applied the change on my local installation and it seems there is more missing. 'tags' is not defined in the table definiton.

    tags = TagColumn(
        url_name='ipam:iprange_list'
    )

I've created another PR for this fix.