Add more Hotspot HW intrinsics for hashing and BigInteger

[AliveDevil]

With #390 completed, all of the cryptography algorithms are hardware accelerated.
There's a bunch of hashing algorithms, that are hardware accelerated on Hotspot, but aren't on IKVM:

• Crc32 (Aarch64, X86_32)
• Sha1 (Aarch64)
• Sha256 (Aarch64)

Some java.math.BigInteger improvements:

• MultiplyToLen
• SquareToLen
• MontgomeryMultiply
• MontgomerySquare

In library_call.cpp are all usages of these intrinsics specified, e.g. inline_digestBase_implCompressMB is used for SHA1, SHA256, SHA512 intrinsics.