carrays_float.i: Add new file for float type

Signed-off-by: Sarah Knepper <sarah.knepper@intel.com>

src/carrays_float.i

@@ -0,0 +1,8 @@
+// From the SWIG documentation:
+//		Unlike #include, %include includes each file once
+//		(and will not reload the file on subsequent %include declarations).
+//		Therefore, it is not necessary to use include-guards in SWIG interfaces. 
+// So you can include this file and .i files for other C types
+%include "stdint.i"
+%include "carrays.i"
+%array_class(float, floatArray);