improve parsing and flag Options

src/commonMain/kotlin/com/infendro/cli/exception/run/MissingOptionValueException.kt

@@ -0,0 +1,8 @@
+package com.infendro.cli.exception.run
+
+class MissingOptionValueException(
+    val option: String,
+) : CliException() {
+    override val message: String
+        get() = """no value provided for option "$option""""
+}