NumPy: rework, bump, cleanup, extra libs (#3694)

* NumPy: rework, bump, cleanup, extra libs

* URL

* COPYRIGHT

* Fixed missing symbol

* Linkage fix

* PATCHSET

* Cleanup

dev-python/numpy/patches/numpy-1.16.2.patch

@@ -0,0 +1,15 @@
+diff --git a/numpy/core/src/umath/cpuid.c b/numpy/core/src/umath/cpuid.c
+index 6744ceb..b1aaa09 100644
+--- a/numpy/core/src/umath/cpuid.c
++++ b/numpy/core/src/umath/cpuid.c
+@@ -19,7 +19,9 @@
+ static NPY_INLINE
+ int os_avx_support(void)
+ {
+-#if HAVE_XGETBV
++// See, GCC bug < 7.3.1
++// https://github.com/numpy/numpy/pull/10814
++#if 0
+     /*
+      * use bytes for xgetbv to avoid issues with compiler not knowing the
+      * instruction