Install caModuleDirs.pm into bin/<host>

Adjust capr.pl to use it from there.
Host arch's may use different absolute paths to the same Base directory,
so they can't share a single copy of that module.

src/perl/Makefile

@@ -46,7 +46,7 @@ ifeq ($(findstring $(OS_CLASS),WIN32 cygwin32),) # Doesn't build on WIN32
   PERL_MODULES += CA.pm
   PERL_MODULES += $(PERL_ARCHPATH)/$(LOADABLE_SHRLIB_PREFIX)Cap5$(LOADABLE_SHRLIB_SUFFIX)
 
-  PERL_MODULES += caModuleDirs.pm
+  PERL_SCRIPTS += caModuleDirs.pm
 
   HTMLS_DIR = .
   HTMLS = CA.html

src/perl/capr.pl

@@ -10,8 +10,9 @@
 use strict;
 
 use FindBin qw($Bin);
-use lib "$Bin/../../lib/perl";
+use lib ($Bin, "$Bin/../../lib/perl");
 use caModuleDirs;
+no lib $Bin;
 
 use Getopt::Std;
 use EPICS::Path;