Added custom integer types, signed and unsigned, with and without std::numeric_limits<> specializations, to test

[SVN r35830]

libs/math

@@ -1 +1 @@
-Subproject commit 57e9914259eabc63323cedaafd8936a087bedf1a
+Subproject commit 025d2d6b735ebf1e29335ace8e9ba7ae490aa173