Added IsEmpty class with method any()
Added none, all, and value methods. Also added php docblock comments
IsDouble
 * Added for double handling

 IsEmpty
  * Variable names corrected

  VariableHandling
   * Interface added for all variable handling functions
Added IsArray, IsBool, IsCallable, and IsFloat
Added IsInteger, IsLong, IsNull, IsNumeric, and IsObject
Added .idea