Add a new trigger type statustrigger

StatusTrigger will trigger if a status activates (or reaches a certain
activation # of auras). This is an abstraction provided by AuraList
which keeps track of which auras belong to which statuses.

Added type annotations to all touched files

src/types/unitframe.lua

@@ -16,13 +16,22 @@
 -- Omicron Frames. If not, see <https://www.gnu.org/licenses/>. 
 local omif = select(2, ...)
 local types = omif.GetModule("types")
+
+---@class StatusBar
 local StatusBar = types.StatusBar
+
+---@class AuraList
 local AuraList = types.AuraList
+
+---@class SquareIndicator
 local SquareIndicator = types.SquareIndicator
 
 ---@class AuraTrigger
 local AuraTrigger = types.AuraTrigger
 
+---@class StatusTrigger
+local StatusTrigger = types.StatusTrigger
+
 ---@class UnitFrame
 local UnitFrame = types.CreateClass("UnitFrame")
 types.UnitFrame = UnitFrame
@@ -47,6 +56,8 @@ local colors = {
     white = {1.0, 1.0, 1.0}
 }
 
+---@param unit string
+---@param config table
 function UnitFrame:Init(unit, config)
     local width = config.size.width
     local height = config.size.height
@@ -85,8 +96,8 @@ end
 function UnitFrame:CreateTriggers(triggers)
     for _, trigger in ipairs(triggers) do
         local kind = trigger.kind
+        local indicator = self:CreateIndicator(trigger.indicator)
         if kind == "AuraTrigger" then
-            local indicator = self:CreateIndicator(trigger.indicator)
             local at = AuraTrigger:new(
                     trigger.spellId,
                     trigger.own,
@@ -95,6 +106,10 @@ function UnitFrame:CreateTriggers(triggers)
             )
             at:SetTarget(indicator)
             self.auras:AddTrigger(at)
+        elseif kind == "StatusTrigger" then
+            local st = StatusTrigger:new(trigger.status, trigger.requiredCount, trigger.invert)
+            st:SetTarget(indicator)
+            self.auras:AddTrigger(st)
         end
     end
 end