Add support for Two Hand Mastery socket line - #10409

Description of the problem being solved:

The Two Hand Mastery line 30% increased Armour and Evasion Rating if your Main Hand Weapon has a Red and Green Socket was not parsed. The tree showed it as "Not supported in PoB yet" and it added nothing to the character. This line replaced the two per-socket lines of this mastery in the 3.29.0 patch notes.

It is now read as a red and a green socket on the main hand weapon, in the same way as the Staff Mastery line from #10067.

Steps taken to verify a working solution:

• Added an item test: the line gives 30% with R-G sockets and nothing with R-B or G-B.
• Allocated the mastery with an R-G Lion Sword equipped. Armour goes from 1,240 to 1,540 and Evasion from 1,928 to 2,379. The node tooltip now shows the stat differences for unallocating it.
• The Armour Total Increased breakdown in the Calcs tab now lists the mastery with both socket conditions, 30 on top of Sentinel's 24.

Before screenshot:

After screenshot: