Release 0.1.2

What's Changed

• Updating matcher api to use BindingsSet object instead of Vec by @luketpeterson in #270
• Implementing abstract space API in C, as well as bindings to call int… by @luketpeterson in #284
• Replace AtomIter::extract_var by more universal <&VariableAtom>::try_from by @vsbogd in #291
• Add Char primary type by @ngeiswei in #293
• Statically link hyperonc library to the hyperonpy.so library by @vsbogd in #294
• Make vars unique for the type returned by grounded atom by @vsbogd in #295
• Properly apply and return var equalities from let, let* and case by @vsbogd in #296
• Correctly handle variables in results of the interpreter cache by @vsbogd in #298
• Add filter_type() function into AtomIter to filter sub-atoms by types by @vsbogd in #299
• Fix for gracefully returning on parsing errors. by @cowboyphilosopher in #286
• Improve parsing Number by @ngeiswei in #297
• Deprecate grounding space direct api, migrate runner to abstract space interfaces by @luketpeterson in #302
• Fix redundant imports by @ngeiswei in #310
• Init logger in a Python API library by @vsbogd in #314
• Return variable from Bindings::resolve() when no value is found by @vsbogd in #315
• test on matching state atoms by @Necr0x0Der in #309
• Factoring space common by @luketpeterson in #312
• Changing c_str api to follow the snprintf() pattern by @luketpeterson in #318
• Uniformly replace variables in bindings when returning cached result by @vsbogd in #325
• Adding glue to allow spaces implemented in Python. by @luketpeterson in #322
• Creating a pathway to wrap spaces in grounded atoms from C & Python by @luketpeterson in #329

Full Changelog: v0.1.1...v0.1.2