feat: add player title with UnitPVPName for CreatureText

[le-u-f]

Closes #83

[le-u-f]

I don't know how locales work, so here's the list if you want to add them

-- frFR
L["SHOW_PLAYERS_TITLE"] = "Afficher le titre des joueurs"

-- deDE
L["SHOW_PLAYERS_TITLE"] = "Spielertitel anzeigen"

-- ruRU
L["SHOW_PLAYERS_TITLE"] = "Показать название игрока"

-- ptBR
L["SHOW_PLAYERS_TITLE"] = "Mostrar título dos jogadores"

-- esES
L["SHOW_PLAYERS_TITLE"] = "Mostrar el título del jugador"

-- esMX
L["SHOW_PLAYERS_TITLE"] = "Mostrar el título del jugador"

-- zhTW
L["SHOW_PLAYERS_TITLE"] = "顯示玩家標題"

-- zhCN
L["SHOW_PLAYERS_TITLE"] = "显示玩家标题"

-- koKR
L["SHOW_PLAYERS_TITLE"] = "플레이어 타이틀 표시"

-- itIT
L["SHOW_PLAYERS_TITLE"] = "Mostra il titolo dei giocatori"

[le-u-f]

Hi @plusmouse, could you take a look at this PR please?

I'm using it and it works perfectly, but I have to re-edit the code locally every time I download a Platynator update, which isn't very convenient 😝

Thanks in advance.