Changelog for polysemy-process-0.11.1.0

Unreleased

Add oneshot variants of Process interpreters that send Stop to the individual actions inside the scope, modeling a process that is expected to terminate.
Refactor interpreters to use Scoped as the basis and specialize unparameterized ones. Don't provide loads of specializations for I/O types, rather offer interpreters that handle ProcessOutput and ProcessInput only.
Add constructors for SysProcConf that use Path and Text.
Add the newtype Pid for SystemProcess.
Add currentPid.
Catch exceptions when starting a system process and send them to the scope.
Change the process config constructor expected by interpretSystemProcessNative to return Either Text SysProcConf, throwing the error as SystemProcessScopeError.

Remove stderr from the Process abstraction so that stdout and stderr must be unified after parsing (potentially as Either to emulate the previous behaviour).
Make default ProcessOutput interpreters discard all stderr output.
Add re-interpreter from Input/Output to Process.
Add interpretProcessOutputIncremental, a stateful interpreter using a supplied parser that may produce partial results.
Add interpretProcessCurrent et al, treating the program's process's stdio as the (mirrored) stdio of an external process.
Add interpretProcessOutputLeft and interpretProcessOutputRight, lifting results of another interpreter into Either.

Add ProcessOptions, replacing the primitive parameters of Process interpreters.
Add an option for Process that determines whether to kill the process after exiting the scope.

Allow Process to emit custom chunks constructed by an interpreter of ProcessOutput instead of ByteStrings containing whatever the Handle produced.
Rename stdio interpreters.
Add helper resolveExecutable that looks up names in $PATH and ensures the files are executable.
Add effect Pty for interacting with pseudo terminals.
Add low-level process abstraction effect, SystemProcess.