Public test release

Major speed-up in compiler

This release features much faster compilation (~20-30x vs. v0.1.0-alpha) due to a C based parser, as opposed to the Snit based parser from v0.1.0-alpha. This also removes all runtime dependencies. VecTcl now runs and builds on a bare Tcl8.6 installation. Only if the grammar is changed, tcllib is required.

For examples on usage and benchmarks please see the GitHub pages