Custom titles should not replace a users forum role on user profiles

[netweb]

Rather than replace the users forum role, the forum role should remain and a custom title field be added to the profile, maybe the field should be simply titled "Title: " rather than "Custom Title:"

e.g: ​https://wordpress.org/support/users/sergeybiryukov

Before:

After:

Related: #1950

[netweb]

In meta-1972.patch​ a new profile field Title: is added to user profiles displaying users custom titles if they have had a custom title added to their account.

[netweb]

In meta-1972.2.patch​ this removes the overriding of users forum roles with their custom title introduced in r3880 and r3884, meta-1972.patch​ adds user titles as a new profile field on user profile pages.

[netweb]

Just adding, patch needs a refresh based on the approach now taken in #1950

[coffee2code]

In 4144:

Support Forums: Don't override display value of user role with custom title.

Props netweb.
See #1972.

[coffee2code]

In 4145:

Forums Theme: Show custom title separately from forum role in user forum profile.

Props netweb.
Fixes #1972.

[coffee2code]

In 4147:

Forums Theme: Display custom title, if defined, in user forum replies.

After [4144], the display of a user's forum role is no longer overridden by a custom title, so the display of the custom title must be reintroduced.

See #1972.