Since DSA is enabled, dsa.h is needed. Normally this header is included
implicitly with engine.h but with OPENSSL_API_COMPAT >= 0x10100000L ,
this is not so.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

This update also:
    - enables parallel builds
    - moves to the CMake build system
    - removes the redundant InstallDev stanza

Signed-off-by: Jonathan G. Underwood <jonathan.underwood@gmail.com>

Signed-off-by: Jonathan G. Underwood <jonathan.underwood@gmail.com>

Update to new upstream version. Needed to add a patch provided by upstream to compile with musl.

Signed-off-by: David Mora <iamperson347+public@gmail.com>