bartpio/SigncodeLibv1.2.0

Authenticode signing using Mono libraries, accepting cert in the form of a spc file and pvk file. Uses Mono Security code. As a tool, includes OpenSSL v1.0.2o binaries for convenience, useful for converting pfx keys to spc+pvk keys. For key conversion information, please see https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Build_Instructions/Signing_an_executable_with_Authenticode . Please follow any applicable licensing rules for Mono and for Openssl.