Cache directory is not properly created automatically on first run.

[ashea-code]

In the situation of someone running a bakeware compiled binary on an extremely fresh install of some UNIX/Linux installs, when a ~/.cache/bakeware directory is not present already on the system the .cache directory will be created, but NOT the backware sub-directory. Resulting in the following message:

bakeware: Error creating directory ~/.cache/bakeware/.tmp/2mVpqM??: No such file or directory
bakeware: Unrecoverable validation error

UPDATE: After digging a bit more, I see the actual issue here. In utils.c it's expected that the env variable HOME will be an absolute path to the user's home directory when in-fact (in some cases of WSL) it might contain a non-absolute or un-resolved path (like ~). Because we don't expand ~ it tries to create that directory exactly, and it cannot.