Added f module

Author: klaudiosinani

index.js

@@ -46,6 +46,7 @@ const even = require('./src/even')
 const every = require('./src/every')
 const excludes = require('./src/excludes')
 const ext = require('./src/ext')
+const f = require('./src/f')
 const fact = require('./src/fact')
 const fill = require('./src/fill')
 const filter = require('./src/filter')
@@ -247,6 +248,7 @@ module.exports = {
   every,
   excludes,
   ext,
+  f,
   fact,
   fill,
   filter,

src/f.js

@@ -0,0 +1,7 @@
+'use strict'
+const cons = require('./cons')
+const curry = require('./curry')
+
+const f = cons(false)
+
+module.exports = curry(f)