0.2.2-rc

Changelog

• Add Hex 7 Segments CC (#80 by @C47D)
• Add Hex 7 Segments CA (#81 by @C47D)
• Support Kefir I board (@set-soft)
• Add `default_nettype none to generated verilog files
• Add Icestudio headers to generated files
• Add verilog header (.vh) files inclusion
• Add File > Export testbench
• Add File > Export GTKWave
• Compatible with apio-debian (#87 by @set-soft)
• Add Tools > Enable/Disable drivers for Linux, Mac and Windows
• Install gtkwave toolchain package (only for Windows)
• Update spanish translation