Fixes#124756 by removing the concept of `Version.unknown`.
`Version` fields that needed the ability to represent an unknown version have been made nullable. Assigning `null` to them represents an unknown version.
* setup wireless debugging to use device IP
* fix tests
* fix unused var and missing annotation
* remove unneeded try catch
* remove commented out line, change null to package id
* better way to get package id
* update mDNS lookup to continously check for server, add messaging if takes too long to find observatory url, update flutter drive to enable publish-port if using network device
* Refactor mDNS Discovery to poll for observatories and better handle multiple instances of the same app. Update drive command to make publish-port more stable. Update attach for iOS to only use Protocol Discovery if applicable, run mDNS and Protocol Discovery simultaneously, handle --debug-port/--debug-url/--device-vmservice-port, continously poll for obseravtories with mDNS, include port in error message when mutliple available
* add and update comments, use logger spinner intead of timer in flutter attach, other small improvements
* add newline to message so next log won't be on same line
* fix install/waiting for permission status progress so it doens't double print the time it took.
* only print backtrace if observatory times out on a physical usb connected device
* fix test
* Update related references from Observatory to Dart VM Service
* fix test
Our current top crasher is an unclear error when ProcessManager fails to resolve an executable path. To fix this, we'd like to being adjusting the process resolution logic and adding more instrumentation to track failures. In order to begin the process, the ProcessManager has been folded back into the flutter tool
Reland of #67669
The flutter tool has a number of crashes on stable where an ArgumentError is thrown due to the process manager not being able to resolve an executable.
So that we can adjust/modify this logic, fold it into flutter and add some additional logging.
caches the resolved executable per target directory, to avoid repeated look ups.
Instead of throwing an argument error, attempts to run the executable as given if an exact path can't be found
Accept files or symlinks for the executable path.
user where/which to resolve path instead of package:process logic.
The flutter tool has a number of crashes on stable where an ArgumentError is thrown due to the process manager not being able to resolve an executable. Fold the resolution logic into the tool and use where/which instead of the package:process specific logic.
