add conversations between AudioFile and VoiceFile

CHANGELOG.md

@@ -19,6 +19,8 @@
     * Now in forward info you can get `ForwardFromSupergroupInfo`
     * **BREAKING CHANGE** `SendVoice` factory function has changed its signature: now it have now `thumb`
     (according to the [documentation](https://core.telegram.org/bots/api#sendvoice))
+    * `AudioFile` now can be converted to `VoiceFile`
+    * `VoiceFile` now can be converted to `AudioFile`
 * `TelegramBotAPI-extensions-api`:
     * ALL REQUESTS EXECUTOR USAGES WERE REPLACED WITH `TelegramBot` TYPEALIAS. It should not bring any break changes
     * Internal changes of `sendRegularPoll` and `sendQuizPoll` extensions

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/files/AudioFile.kt

@@ -24,3 +24,5 @@ data class AudioFile(
     override val fileSize: Long? = null,
     override val thumb: PhotoSize? = null
 ) : TelegramMediaFile, MimedMediaFile, ThumbedMediaFile, PlayableMediaFile, TitledMediaFile, Performerable
+
+fun AudioFile.asVoiceFile() = VoiceFile(fileId, fileUniqueId, duration, mimeType, fileSize)

tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/files/VoiceFile.kt

@@ -20,3 +20,8 @@ data class VoiceFile(
     @SerialName(fileSizeField)
     override val fileSize: Long? = null
 ) : TelegramMediaFile, MimedMediaFile, PlayableMediaFile
+
+fun VoiceFile.asAudioFile(
+    performer: String? = null,
+    title: String? = null
+) = AudioFile(fileId, fileUniqueId, duration, performer, title, mimeType, fileSize)