revC: pull +5V a bit further away from GND

revC: swap U2/U3, fix DRC issue

revC: length match LVDS pairs (#82)

target.hardware: explicitly set clock constraint for sys_clk. The default doesn't work with nextpnr because of signal naming issues.

access: add name hints to generated TSTriples. This makes PNR reports more useful, e.g.: Info: Max frequency for clock 'lpcapplet_lclk_i_$glb_clk': 54.32 MHz (PASS at 30.00 MHz) instead of: Info: Max frequency for clock 'lpcapplet_tstriple2_i_$glb_clk': 46.29 MHz (PASS at 30.00 MHz)

revC: all routed, top silkscreen cleaned up

revC: I/O buffers fully routed

cli: fix --trace.

applet.jtag_xc9500: add missing JTAG state machine fixes. Forgot to update FVFY and FPGMI.

applet.jtag_xc9500: running commands requires going via Update-IR/DR. The JTAG applet has been fixed to take a minimal path through the JTAG state machine, which unfortunately broke a few downstream applets.