v0.3.0

What's Changed

• Auto-detect pragma custom_templates for main component instantiation by @numtel in #87
• Default optimization level matches circom compiler by @numtel in #91
• [draft] Add C tester by @erhant in #89

This is a breaking change due to the changing default optimization level, which may break certain Groth16 circuits due to removed addition constraints.

Big thanks to @numtel

Full Changelog: v0.2.1...v0.3.0