STYLE: Change source template files to .in extension

The cblas_mangling_with_flags.h and lapacke_mangling_with_flags.h
are template files that are not used directly.  They need to be
configured (i.e. copied) to lapacke_mangling.h and cblas_mangling.h
header files that are used.  These renamings make the intent of
these files more clearly reported.

The file LAPACKE/include/lapacke_mangling.h should not be stored in the
repository because it should be generated (copied from above) at build
time.

Author: hjmjohnson

CBLAS/Makefile

@@ -1,7 +1,7 @@
 include ../make.inc
 
 all:
-	cd include && cp cblas_mangling_with_flags.h cblas_mangling.h
+	cd include && cp cblas_mangling_with_flags.h.in cblas_mangling.h
 	cd src && $(MAKE) all
 
 

CBLAS/include/cblas_mangling_with_flags.h renamed to CBLAS/include/cblas_mangling_with_flags.h.in

@@ -45,7 +45,7 @@ include ../make.inc
 all: lapacke 
 
 lapacke:
-	cd include && cp lapacke_mangling_with_flags.h lapacke_mangling.h
+	cd include && cp lapacke_mangling_with_flags.h.in lapacke_mangling.h
 	cd src && $(MAKE)
 	cd utils && $(MAKE)