Change concept of ULINUX (for universal SSL build, always build ULINUX)

[jeffaco]

Significant changes to how SCXCore agent deals with ULINUX. In the past,
--enable-ulinux meant two things: Build universal binaries (that can run
anywhere based on Linux features and not based on platform #ifdefs), and
build for universal SSL installations (link against both versions of SSL).

Now --enable-ulinux only builds for universal SSL installations. We will
always build universal binaries. This eliminates Redhat/SuSE-specific kits.

Other changes along the way:

1. Target directory is only populated with shipping bits. This means that
   lots of superflous stuff isn't copied on every system build to our
   build archives.
2. Eliminted the concept of universal_r and universal_d binaries. A
   universal binary is a universal binary, regardless of DPKG vs. RPM
   packaging. This squashes the universal_r/universal_d naming convention.
3. Made disable-port (disabling port 1270 listener) a configuration
   option, making it easier for packages that need this to specify it.
   Currently, this qualifier also disables "mega-bundles". The assumption
   is that, if you want a lightweight agent without the listener, you
   likely want to handle mega-bundles (bundles with other components)
   yourself, rather than to assume SCXCore behavior.
4. Reworked bundling packaging to be cleaner at build time, and to properly
   abort the build if a bundle build problem was encountered.
5. Reworked unit tests to actually pass on non-SuSE and non-Redhat systems.
   In the past, many unit tests would fail on CentOS platforms.

@MSFTOSSMgmt/omsdevs

[johnkord]

Signed off!