Cleanups to code style, tabs, etc.
Added SIGNATURE_SIGNKEYINFO worker property to allow setting wether KeyInfo should be signes as part of signed properties.
Added SIGNATURE_INCLUDECHAIN worker property to allow disabling inclusion of certificate chain data at SigningCertificate, something needed to avoid validation bugs when using MITyCXADES library.
Added DATAOBJSREFS_HASHALGORITHM, REFERENCE_PROPERTIES_HASHALGORITHM & TSA_HASHALGORITHM, worker properties to allow controlling hash algorithms used during signature creation.
Added SIGNATUREPOLICY_IDENTIFIER & SIGNATUREPOLICY_BYTES worker properties to allow setting policy details at config instead of having to fetch it from internet.