temporary enhancement hack: show debuffs in a suboptimal way

In new dungeons you don't really know what debuffs you want to see so
it's hard to configure them. To deal with this I added a quick but
suboptimal feature to show up to 5 debuffs automatically on the unit
frames. It's not great, but it's not terrible either. A hardcoded list
of debuffs to ignore is added too.

src/types/unitframe.lua

@@ -121,6 +121,8 @@ function UnitFrame:Init(unit, config)
 
     self:CreateTriggers(config.triggers)
 
+    self:InitDebuffs()
+
     self:RegisterEvents()
     self:Enable()
 end
@@ -489,6 +491,73 @@ function UnitFrame:GROUP_ROSTER_UPDATE()
     end
 end
 
+-- FIXME: This is a total hack job, just quickly want to get debuffs rendering on my unit frames to learn new dungeons
+function UnitFrame:InitDebuffs()
+    local icons = {}
+    self.debuffIndicators = icons
+    for i = 1, 5 do
+        local icon = IconIndicator:new(self, 17, "BOTTOMRIGHT", -2 - (i - 1) * 19, 2, true, 10.0, nil, true)
+        icons[i] = icon
+    end
+end
+
+local ignoredDebuffs = {
+    [57723] = true, -- Sated, shaman lust debuff
+    [80354] = true, -- Temporal displacement
+    [390435] = true, -- Exhausstion
+    [264689] = true, -- Fatigued
+    [87024] = true, -- Cauterized
+    [45181] = true, -- Cheated Death
+    [41425] = true, -- hypothermia
+    [124275] = true, -- Light stagger
+    [124274] = true, -- moderate stagger
+    [124273] = true, -- heavy stagger
+    [25771] = true, -- Forbearance
+    [456447] = true, -- Battle-Scarred Veteran
+    [382912] = true, -- Well-Honed Instincts
+    [1223611] = true, -- Ethereal Exhaustion
+    [456779] = true, -- Will of the Dawn
+    [448005] = true, -- Light of the Martyr
+    [157131] = true, -- Recently Saved by the Light
+    [387847] = true,
+    [206151] = true, -- Challenger's Burden
+    [113942] = true, -- Demonic Gateway
+    [1216943] = true, -- void pulsar
+    [462661] = true, -- Voidbinding
+    [1239229] = true, -- k'areshi surge
+    [449042] = true, -- Radiant Light
+    -- blood draw
+}
+
+function UnitFrame:UpdateDebuffs()
+    local auras = {}
+    local i = 1
+    while #auras < 5 do
+        local aura = C_UnitAuras.GetAuraDataByIndex(self.unit, i, "HARMFUL")
+        if aura == nil then
+            break
+        end
+        if not ignoredDebuffs[aura.spellId] then
+            table.insert(auras, aura)
+        end
+        i = i + 1
+    end
+    for i = 1, 5 do
+        local aura = auras[i]
+        local icon = self.debuffIndicators[i]
+
+        if aura then
+            if icon.frame then
+                icon:Update(aura)
+            else
+                icon:Show(aura)
+            end
+        elseif icon.frame then
+            icon:Hide()
+        end
+    end
+end
+
 function UnitFrame:UNIT_AURA(unit, info)
     if self:HasUnitChanged() then
         self:UpdateAll(true)
@@ -497,6 +566,8 @@ function UnitFrame:UNIT_AURA(unit, info)
     if self.auras:Update(info) then
         self:UpdateHealthColor()
     end
+
+    self:UpdateDebuffs()
 end
 
 function UnitFrame:UNIT_HEALTH()
@@ -600,6 +671,7 @@ function UnitFrame:UpdateAll(unitChanged)
     self:UpdateRange()
     self:UpdateName()
     self:UpdateRole() -- Also calls UpdatePower if power is visible
+    self:UpdateDebuffs()
 end
 
 function UnitFrame:UpdateHealth()