new: extract logging module into standalone core library

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/core/logging/KermitLogger.kt

@@ -1,26 +0,0 @@
-package fr.ajaury.gwenedeg.core.logging
-
-import co.touchlab.kermit.Logger as Kermit
-
-/**
- * Kermit-backed implementation (adapter) of the [Logger] port.
- */
-class KermitLogger(
-    private val tag: String = "Gwenedeg",
-) : Logger {
-    override fun debug(message: String, throwable: Throwable?) {
-        Kermit.d(throwable = throwable, tag = tag) { message }
-    }
-
-    override fun info(message: String, throwable: Throwable?) {
-        Kermit.i(throwable = throwable, tag = tag) { message }
-    }
-
-    override fun warning(message: String, throwable: Throwable?) {
-        Kermit.w(throwable = throwable, tag = tag) { message }
-    }
-
-    override fun error(message: String, throwable: Throwable?) {
-        Kermit.e(throwable = throwable, tag = tag) { message }
-    }
-}

shared/src/commonMain/kotlin/fr/ajaury/gwenedeg/core/logging/Logger.kt

@@ -1,27 +0,0 @@
-package fr.ajaury.gwenedeg.core.logging
-
-/**
- * Logging abstraction so the rest of the app depends on this interface
- * rather than on a concrete logging library.
- */
-interface Logger {
-    fun debug(
-        message: String,
-        throwable: Throwable? = null,
-    )
-
-    fun info(
-        message: String,
-        throwable: Throwable? = null,
-    )
-
-    fun warning(
-        message: String,
-        throwable: Throwable? = null,
-    )
-
-    fun error(
-        message: String,
-        throwable: Throwable? = null,
-    )
-}