* Add flake8 configuration

.flake8:
Add flake8 configuration that limits the line length to 120 chars and
outputs to flake8.txt

* Add flake8.txt to gitignore

.gitignore:
Add flake8.txt (flake8 output file) to ignore.

* Syntax fixes and cleanup for top-level wscript

wscript:
Fix syntax of wscript according to pep8 (but do not break long lines).
Remove unused imports and move all module level imports to the top of
the file.
Fix broken build target of IIO driver (source argument to
`create_driver_obj()` supplied an uninitialized variable).
Break lines at 120 chars.

* Fix common/wscript syntax

common/wscript:
Fix syntax problems, unneeded imports and break lines at 120 chars.

* Fix compat/alloca/wscript syntax

compat/alloca/wscript:
Fix compat/alloca/wscript syntax

* Fix compat/wscript syntax

compat/wscript:
Fix compat/wscript syntax

* Fix dbus/wscript syntax

dbus/wscript:
Fix syntax and break lintes at 120 chars.

* Fix example-clients/wscript syntax

example-clients/wscript:
Fix syntax and remove commented code.

* Fix tests/wscript syntax

tests/wscript:
Fix syntax and commented code.

* Fix tools/wscript syntax

tools/wscript:
Fix tools/wscript syntax.

* Add github workflow for linting wscripts

.github/workflows/lint.yml:
Add github workflow for linting wscripts using findutils and flake8.

* Fix project version extraction in CI

.github/workflows/build.yml:
Adapt the project version extraction in CI to the syntax changes in
the top-level wscript.

* Move jack_control to dbus dir

dbus/jack_control:
The `jack_control` script is dbus specific and not part of the original
jack tools. As the files offered by jack-example-tools are now
optionally not built, the script needs to be made available from a
location, that is not ignored when omitting the build of
jack-example-tools files.

* Move installation of jack_control to dbus integration

dbus/wscript:
Install `jack_control` script if building/installing jackdbus.

tools/wscript:
Remove (unconditional) installation of `jack_control` script.

Signed-off-by: falkTX <falktx@falktx.com>

Found via `codespell -q 3 -L capela,nd,numer,parm`

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

This is not MOD where this is used only for usb stuff..

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>

The main loop might be blocked by `data_ready` when JACK server dies
while the program is running.

To reproduce the problem:

1. Start JACK server
2. Run `jack_midi_dump`
3. Stop JACK server
4. Press Ctrl-C in `jack_midi_dump` to send SIGINT.
5. Observe that the program doesn't stop and stuck in the main loop.

This patch forces the `data_ready` to be signaled in the signal handler
to prevent indefinite waiting.

Signed-off-by: falkTX <falktx@falktx.com>

Signed-off-by: falkTX <falktx@falktx.com>