Our August releases produce invalid octal numbers ("08") otherwise.

qmlplugindump sometimes hangs forever and thus blocks a build. Setting an (arguably arbitrary) timeout works around that.

This reverts commit 3830dde78f9bde7ebe01fddca49d5806d4e52bea.

Summary:
It serves as a replacement for `kdbusaddons_generate_dbus_service_file`.

An application can be a DBus-activated service just fine without using KDBusAddons.
Moreover, this new module uses named arguments for future-proofing, and adds support for specifying a `SystemdService`.
It also cleans up the confusion on what the "path" is about: Rather than requiring to specify executable and path separately, we just extract the executable file name on Windows, if necessary.

Usage:
```
ecm_generate_dbus_service_file(NAME org.kde.kded5
                               EXECUTABLE ${KDE_INSTALL_FULL_BINDIR}/kded5
                               SYSTEMD_SERVICE plasma-kded)
```

Test Plan:
* Was able to generate a kded service file
* Was able to generate a kded service file with `SystemdUnit`
* Verified that it moaned when executable wasn't an absolute path
* Untested on Windwos

Reviewers: #frameworks, davidedmundson, kossebau, kfunk, habacker

Subscribers: kde-frameworks-devel, kde-buildsystem

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D29051

Summary:
This, as the name suggests, configures a file and installs it.

It's not very complicated but it's a repeated pattern in plasma that
gets quite messy dealing with temporary files.

Test Plan: Used in a project

Reviewers: #build_system

Subscribers: apol, kossebau, pino, kde-frameworks-devel, kde-buildsystem

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D28355

Lexer for CMake could not parse this broken grammar,
because it is ".cmake.in", not just ".cmake".

CMake itself solves this problems by declaring such code blocks
as generic "::" blocks instead. For example, take a look at the
last code block at CMakePackageConfigHelpers help page:

 - https://cmake.org/cmake/help/v3.18/module/CMakePackageConfigHelpers.html#example-generating-package-files
 - https://github.com/Kitware/CMake/blob/0464298956a204578aa8421ca0b84c089a97e0aa/Modules/CMakePackageConfigHelpers.cmake#L208

Png2Ico provides lower quality icons compared to icoutils as png2ico
predates the current icon standard.
Still lloking for png2ico prints
 * Png2Ico, Executable that converts a collection of PNG files into a Windows icon file, <https://www.winterdrache.de/freeware/png2ico/ or https://commits.kde.org/kdewin>

which confuses new users.