[5.3] linux64x64 Crypto plugins

> Hello everyone,
>
> I was able to generate these 3 plugins, for Crypto, on my linux64x64
> system. I verified that these plugins are loaded in the released 5.3
> vm, when I run the Crypto tests (minus CryptoRC2Test>>#testARC2, which
> seg-faults the vm). After running, doing 'Smalltalk listLoadedModules'
> results in:
>
> #('MD5Plugin CryptographyPlugins-eem.14 (e)'
> 'DESPlugin CryptographyPlugins-eem.14 (e)'
> 'SHA256Plugin CryptographyPlugins-eem.14 (e)'
> 'DSAPrims CryptographyPlugins-eem.14 (i)'
> 'UUIDPlugin VMMaker.oscog-eem.2721 (e)'
> 'ZipPlugin VMMaker.oscog-eem.2721 (i)'
> 'B2DPlugin VMMaker.oscog-eem.2721 (i)'
> 'BitBltPlugin VMMaker.oscog-eem.2721 (i)'
> 'SocketPlugin VMMaker.oscog-eem.2721 (i)'
> 'CroquetPlugin VMMaker.oscog-eem.2721 (i)'
> 'FilePlugin VMMaker.oscog-eem.2721 (i)'
> 'LargeIntegers v2.0 VMMaker.oscog-eem.2721 (i)'
> 'MiscPrimitivePlugin VMMaker.oscog-eem.2721 (i)'
> 'SecurityPlugin VMMaker.oscog-eem.2721 (i)')
>
> So the Crypto plugins are loaded. As I only have plugins for
> linux64x64, I welcome any plugin contributions for other platforms, to
> be collected within the following Dropbox folder.
>
> https://www.dropbox.com/sh/yhv253rwrhq0q5p/AAB7PKP2KPiGpDnIyule2h_Ia?dl=0
>
> tyk, r
>