Do not just dump jars in .local/lib

[cmnrd]

It seems like currently the install script just unpacks the archive in .local. Effectively, this dumps all jars in .local/lib. I think this is a bad idea for multiple reasons:

• Without any kind of namespacing, there is a risk of overwriting other files in .local/lib.
• Other jars in .local/lib could end up on our classpath.
• It is difficult to figure out which files are installed by LF, and therefore it is difficult to uninstall.
• We cannot easily remove old contents before installing an updated version. This can create all kind of weird side-effects.

A more robust approach would be to unpack the archive in .local/share/lf-cli (or something along those lines) and add symbolic links, e.g., from ./local/bin/lfc to ./local/share/lf-cli/bin/lfc. Then we can easily delete the .local/share/lf-cli before (re)installing.

[lhstrh]

Right, this is exactly what I was thinking. Initially, I thought that a solution would be to change the directory structure in the produced archive (i.e., have bin and lib/lingua-franca/... instead of just bin and lib), but looking at the Gradle docs, this doesn't seem straightforward. Installing in a share directory and creating symlinks, on the other hands, is easy to do. I'll go ahead and implement this.