Add Master Instinct mode (#545)

* Add Inverse Invisible mode

A mode where the locked pieces doesn't become invisible, but your active piece does.

[NOTE: I haven't added the mode to the map yet because the mode selection screen is changing]

* Renamed to Master Instinct

parts/modes/master_instinct.lua

@@ -0,0 +1,24 @@
+return{
+    env={
+        sequence="bagES",
+        freshLimit=15,
+        eventSet='master_instinct',
+        bg='glow',bgm='sugar fairy',
+    },
+    slowMark=true,
+    score=function(P)return{P.modeData.pt,P.stat.time}end,
+    scoreDisp=function(D)return D[1].."P   "..STRING.time(D[2])end,
+    comp=function(a,b)
+        return a[1]>b[1]or(a[1]==b[1]and a[2]<b[2])
+    end,
+    getRank=function(P)
+        local S=P.modeData.pt
+        return
+            S>=1000 and 5 or
+            S>=800 and 4 or
+            S>=500 and 3 or
+            S>=300 and 2 or
+            S>=100 and 1 or
+            S>=60 and 0
+    end,
+}