Clean up inter-library dependencies with interfaces (#6280)

* Have CardDatabase::getPreferredPrintingInfo respect card provider ID overrides (pinned printings)

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# Commit time for manual adjustment:
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* Move settings cache and settings card preference provider out of libcockatrice_settings and into cockatrice

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* Temp cache.

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* Dependency Injection for SettingsCache

* Turn SettingsCache into a QSharedPointer.
* Implement interfaces for settings that need it

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* Adjust oracle.

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* Move abstract/noop interfaces to libcockatrice_interfaces so they can be linked against independently.

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* Clean up some links.

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* Cleanup two includes.

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* More fixes.

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* More includes that slipped past.

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* Stop mocking and start injecting for tests.

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* I don't know why remote_client was including main.

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* Include.

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* Lint.

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* Don't use Qt pointers.

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* Make parser use CardSettingsInterface

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* Also adjust constructor lol.

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* Lint.

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* Revert "Lint."

This reverts commit ecb596c39e.


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* Test.

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Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

dbconverter/src/mocks.cpp

@@ -46,12 +46,7 @@ QString SettingsCache::getSafeConfigFilePath(QString /* configEntry */, QString
 {
     return defaultPath;
 }
-SettingsCache::SettingsCache()
-    : settings{new QSettings("global.ini", QSettings::IniFormat, this)}, shortcutsSettings{nullptr},
-      cardDatabaseSettings{new CardDatabaseSettings("", this)}, serversSettings{nullptr}, messageSettings{nullptr},
-      gameFiltersSettings{nullptr}, layoutsSettings{nullptr}, downloadSettings{nullptr}
-{
-}
+
 void SettingsCache::setUseTearOffMenus(bool /* _useTearOffMenus */)
 {
 }
@@ -450,11 +445,4 @@ void SettingsCache::setRoundCardCorners(bool /* _roundCardCorners */)
 
 void CardPictureLoader::clearPixmapCache(CardInfoPtr /* card */)
 {
-}
-
-SettingsCache *settingsCache;
-
-SettingsCache &SettingsCache::instance()
-{
-    return *settingsCache;
-}
+}