FLN-about-land-infobar-text Added a click listener to the text

Requested here

Request: "About land" floater popup in mini-toolbar mode.

As a resident I would like to click the region text and have the "about land" floater popup.

Acceptance Criteria

• When in "mini location-bar" mode, upon clicking parcel name, display the "About land" floater.

Mockups

Tech Design

Scope

• indra\newview\llpaneltopinfobar.cpp
• indra\newview\llpanelland.h

Panel Top Infobar

• Add a click listener for `mParcelInfoText
• Add a new function that calls LLFloaterReg::showInstance("about_land");
• Be mindful of RLV.