Refactor source layout

Introduce compat source sets and move all kotlin sources to the main directory

[no changelog]

src/main/kotlin/util/ClipboardUtils.kt

@@ -0,0 +1,24 @@
+
+
+package moe.nea.firmament.util
+
+import moe.nea.firmament.Firmament
+
+object ClipboardUtils {
+    fun setTextContent(string: String) {
+        try {
+            MC.keyboard.clipboard = string.ifEmpty { " " }
+        } catch (e: Exception) {
+            Firmament.logger.error("Could not write clipboard", e)
+        }
+    }
+
+    fun getTextContents(): String {
+        try {
+            return MC.keyboard.clipboard ?: ""
+        } catch (e: Exception) {
+            Firmament.logger.error("Could not read clipboard", e)
+            return ""
+        }
+    }
+}