Remove squareRoot and absoluteValue from the codeworld-base Prelude.

The standard names have always been `sqrt` and `abs`.  Given work on
issue #1380, we prefer to use an autocomplete redirect rather than add
redundant names in the API.

The ultimate motivation was that having `squareRoot` in the API doesn't
work so well with other redirects, such as `square` -> `rectangle`,
because `squa` autocompletes to `squareRoot` under the direct-hit rule.
By moving `squareRoot` to another redirect instead of a full symbol, it
gets demoted so it can coexist with the redirect for `square`.

I have skipped the usual deprecation cycle, because I checked, and there
are no working programs using these functions written this year.  That's
a low enough volume that I think the risk would be higher that someone
starts using them during the deprecation.

@Powell-v2 FYI

Author: cdsmith

codeworld-available-pkgs/codeworld-available-pkgs.cabal

@@ -21,6 +21,7 @@ Library
     NumInstances,
     Only,
     QuickCheck,
+    SHA,
     StateVar,
     Yampa,
     active,
@@ -54,6 +55,7 @@ Library
     bool8,
     bytes,
     bytestring,
+    bytestring-builder,
     call-stack,
     capability,
     case-insensitive,
@@ -240,6 +242,7 @@ Library
     random,
     random-shuffle,
     reactive-banana,
+    -- reanimate, (depends on chiphunk, which depends on native library)
     reducers,
     ref-tf,
     reflection,

codeworld-base/src/Internal/Num.hs

@@ -34,7 +34,6 @@ module Internal.Num
     min,
     negate,
     abs,
-    absoluteValue,
     signum,
     truncation,
     rounded,
@@ -45,7 +44,6 @@ module Internal.Num
     pi,
     exp,
     sqrt,
-    squareRoot,
     log,
     logBase,
     sin,
@@ -235,9 +233,6 @@ negate = P.negate
 abs :: Number -> Number
 abs = fromDouble . P.abs . toDouble
 
-absoluteValue :: Number -> Number
-absoluteValue = abs
-
 -- | Gives the sign of a number.
 --
 --  If the number is negative, the signum is -1.  If it's positive, the signum
@@ -316,9 +311,6 @@ sqrt (Number x)
     withFrozenCallStack (P.error "Negative numbers have no square root.")
   | otherwise = fromDouble (P.sqrt x)
 
-squareRoot :: HasCallStack => Number -> Number
-squareRoot = sqrt
-
 -- | Gives the natural log of a number.  This is the opposite of the exp
 --    function.
 --