chore(version): Version bump to v0.5.0

feat: Bump to version 0.4.0 for release

feat: Bump version to 0.3.0 for release

Correcting the branch name for releases to show it contains all patches

adding script and instructions to produce single header. Haven't test…

…ed the header but should work. I will add some tests to test the combined header.

Merge branch 'signals'

Messages now parsed

Signals still need to be added but messages are now parsed out. i updated the dbc files a little bit to not test other features of dbc in some of the error files.

Print function for message was also added to better see error messages when messages don't match.

A constructor was added to initialize the message. for now i deleted default to not allow uninitialized variables in message.

Split and moved files

I separated the header and source. If i want to have a header only version i think scripting to get there is best.

It does compile a bit faster now. I have the source files named for now in the cmake. I might make that auto discover but not sure yet.

Merge branch 'starting-library'