* Refactor sorting and filtering compatibility code
Factor out parts of `TorrentFilter` and `TorrentSorter` classes into
reusable `FilterBase<>` and `SorterBase<>` templates.
Factor out filter and sort models setup from `FilterBar` and `Session`
classes into reusable `FilterListModel<>` and `SortListModel<>`
templates.
* Remove unused lambda capture (Clang build failure)
Since operators were intentionally implicit and we don't want to add more
`NOLINT` comments than necessary, rework the approach to deduce the argument
type instead and cast to it.
* Use imported CMake target for CURL
* Use imported CMake target for fmtlib
* Use imported CMake target for WideInteger
* Use imported CMake target for FastFloat
* Use imported CMake target for UtfCpp
* Use imported CMake target for Threads
* Use imported CMake target for Iconv
* Use imported CMake target for crypto backend
* Use imported CMake target for GTK
* Use imported CMake target for Qt
* Use imported CMake target for deflate
* Use imported CMake target for libevent
* Use imported CMake target for natpmp
* Use imported CMake target for miniupnpc
* Use imported CMake target for dht
* Use imported CMake target for psl
* Use imported CMake target for libutp
* Use imported CMake target for libb64
* Use include directories from libtransmission target
* Reformat CMake code
* Bump minimum CMake version to 3.12
* Add target sources separately via `target_source()`
* Make `tr_win32_app_info()` add target sources on its own
* Don't use `include_directories()`
* Don't use `add_definitions()`
* Limit use of `add_compile_options()`
* Move VDKQueue target declaration to a subdirectory
* Add `tr_disable_source_files_compile()` helper
* Add `tr_target_glib_resources()` helper
* Add `tr_gettext_msgfmt()` helper
* Enable AUTOUIC for Qt client
* Enable AUTORCC for Qt client
* Remove AUTO{MOC,RCC,UIC} source group overrides
* Add `tr_target_idl_files()` helper
* Move source group setup to `tr_qt_add_translation()`
* Add `tr_target_xib_files()` helper
* Prefer `target_sources()` to intermediate variables
* Use explicit visibility versions of `target_*()` commands
* Prefer genexes to conditions in `target_*()` commands
* Add `tr_allow_compile_if()` helper
* Leave only top-level `project()`, remove the rest
* Minor fixups
* Fixup Mac QL plugin install
* Fixup IDE target folders and source groups
* Move GTK compatibility macros into a separate header
* Fix Cairo compatibility checks
* Move Glib-namespaced definitions to GtkCompat header
* Remove unused stringify definitions since we're using fmtlib
* Automatically (re)order include directives (GTK client)
Include our headers first to ease IWYU enforcement.
* Fix includes missing from headers (GTK client)
* Fix build on Mac after includes reordering
