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When we swap the Wire objects, we need the i2c0 IRQ shim to call
Wire1.onIRQ, not the usual Wire.onIRQ.  Same for i2c1 IRQ shim.

Fixes #1607

Thanks to @pietglas for finding and fixing.  See #1590 for more info.

See #1590

Spelling mistakes and grammatical corrections

Fixes #1065

See #1161

The PicoProbe firmware has only supported  CMSIS-DAP for some time, make it the default debugging option to work around IDE 2.0 issues.

Fixes #1552

Ensure that 64 bit multiplication is done when calculating the total size
available and used for SDFS.

This should reduce the `git submodule update` space required as well as
avoid the max-path-len errors under Windows in most cases.

Serve next wificlient (http_request) if current client does not have data

* Enable proper reuse of PIO programs

Rewrite the PIOProgram helper class to properly re-use loaded programs
and to try to re-use loaded instructions before allocating a new PIO
program.

Supersedes #1524

* Less copy-pasta

Handle the case where the DMA manager is unable to completely allocate
needed resources (DMA channels or memory) and return `false` in ::begin()

Per https://github.com/earlephilhower/arduino-pico/pull/1524#issuecomment-1587885054

Per https://github.com/earlephilhower/arduino-pico/pull/1524#issuecomment-1587562257

Fixes #1509

The ABM had an off-by-one error in the DMA buffer swapover.  Instead of
setting the DMA address to the newly added buffer in active[], it set it
to the buffer that was currently running.

This would effectively disable the ping-pong and cause clicks/lost data.

Fixes #1491

Per the Arduino documentation, I2s::available should return bytes free,
not samples.  Adjust accordingly.

See #1491.  Thanks @LinusHeu

Return the actual number of samples that can be read/written, not the
number of 32-bit values there is space for.