Fix win32 install / use meta "resources"

Problem: File::Bundled is outdated and needs to be replaced. But
%?RESOURCES fails to handle situations where the lib name cannot
be guessed (given ssl it would need to produce libssl.so and
ssleay.dll AND libeay.dll. This leaves windows openssl-less

Solution: Replace File::Bundled with %?RESOURCES anyway. The ugly
part of this means non-windows users still have to store the .dll
files even though they will never be used. This is accomplished
by not using the actual %?RESOURCES api internally on anything
except windows (see: OpenSSL::NativeLib.pm6). Its better to
support openssl on windows than to wait for other possible
fixes in rakudo itself, but in the future this should be
replaced

Bonus: Build.PM is no longer needed. So dependencies on panda
and Shell::Command can be dropped (in addition to File::Bundled)

META.info

@@ -1,10 +1,9 @@
 {
     "name"      : "OpenSSL",
-    "version"   : "0.0.2",
+    "version"   : "0.0.3",
     "author"    : "github:sergot",
     "description"   : "OpenSSL bindings",
-    "depends"   : ["Digest","Find::Bundled"],
-    "build-depends" : ["Shell::Command","panda"],
+    "depends"   : ["Digest"],
     "provides" : {
         "OpenSSL"             : "lib/OpenSSL.pm6",
         "OpenSSL::Bio"        : "lib/OpenSSL/Bio.pm6",
@@ -22,5 +21,6 @@
         "OpenSSL::SSL"        : "lib/OpenSSL/SSL.pm6",
         "OpenSSL::X509"       : "lib/OpenSSL/X509.pm6"
     },
-    "source-url"    : "git://github.com/sergot/openssl.git"
+    "source-url"    : "git://github.com/sergot/openssl.git",
+    "resources" : [ "ssleay32.dll", "libeay32.dll" ]
 }

lib/OpenSSL/NativeLib.pm6

@@ -1,28 +1,13 @@
 unit module OpenSSL::NativeLib;
-use Find::Bundled;
 
 sub ssl-lib is export {
-    state $lib;
-    unless $lib {
-        if $*DISTRO.is-win {
-            # try to find a bundled .dll
-            $lib = Find::Bundled.find('ssleay32.dll', 'OpenSSL', :return-original, :keep-filename);
-        } else {
-            $lib = $*VM.platform-library-name('ssl'.IO).Str;
-        }
-    }
-    $lib
+    state $lib = $*DISTRO.is-win
+        ?? %?RESOURCES<ssleay32.dll>.absolute
+        !! $*VM.platform-library-name('ssl'.IO).Str;
 }
 
 sub gen-lib is export {
-    state $lib;
-    unless $lib {
-        if $*DISTRO.is-win {
-            # try to find a bundled .dll
-            $lib = Find::Bundled.find('libeay32.dll', 'OpenSSL', :return-original, :keep-filename);
-        } else {
-            $lib =  $*VM.platform-library-name('ssl'.IO).Str;
-        }
-    }
-    $lib
-}
+    state $lib = $*DISTRO.is-win
+        ?? %?RESOURCES<libeay32.dll>.absolute
+        !! $*VM.platform-library-name('ssl'.IO).Str;
+}