The `parametric_resize_beta` feature has been added that enables the new
resize system. This change also introduces some background tweaks that
start laying the groundwork for future resize work without breaking
functionality.
* work
* work
* fix(performance): output buffer
* style(import): remove extraneous
* style(fmt): make rustfmt happy
* fix(performance): minor adjustments to padding and truncating
* style(fmt): make rustfmt happy
* style(clippy): make clippy happy
* refactor(os_input_output): use Pid for child process
* fix(debug): change debug_to_file to write &[u8]
This patch changes debug_to_file to write entire slices in one call, to
avoid the overhead of opening and closing files for each byte written.
* refactor(ServerOsApi): remove unnecessary muts from methods
Co-authored-by: KOVACS Tamas <ktamas@fastmail.fm>