This release:

• fixes a bug in float32::vfloor which caused it to misbehave for values in the interval (-1, 0).
• fixes bugs in pio-pool::allocate-pio-sms-w-prog with regard to setting PIO program start and wrap addresses.
• adds an RP2350 PicoCalc single-precision floating point graphing demo test/rp2350/picocalc_graph.fs.