Feature: Featureless Make must support both version_target and version_file.

Feature: Featureless Make must support both version_target and version_file.

This separates version_target into version_target and version_file.

Previously, they were one in the same and the recent design change of version_target exposed a problem with this.

Libraries are traditionally linked (as in dynamic linker and not as in the filesystem "ln") to the major version number (such as: "-Wl,-soname,libfake.so.0") and have a file path set to the micro version (such as: libfake.so.0.5.4).
When the version_target was set to "micro", this instead results in "-Wl,-soname,libfake.so.0.5.4" and "libfake.so.0.5.4".

By breaking this up, the linker and the file can be setup appropriately.
The problem here is that they are both related to linking but in two different contexts:
1) Dynamic Linker (_wl,-soname,...).
2) System Linker (ln -vs a b).

To disambiguate these, the version_target is now used to refer to the Dynamic Linker and the version_file is used with the file name in which the system linker is used to link files against.

The Featureless Linux Library used Major.Minor.Micro such that Major.Minor could represent stable versions (for even Minor numbers).
Set this new setting to have version_target set to "minor" instead of the traditional "major" in the appropriate settings files.

When not specified in the build settings file, the defaults must always be provided which are:
1) version_target = "major"
2) version_file = "micro"

This aligns the default behavior to align with traditional practices while manually setting the build settings for all FLL projects to use different settings.

The bootstrap.sh script has been updated to be consistent with this.
The bootstrap.sh has also been updated to include the version prefixes.