Add SteamWar CLI module

- add Clikt-based `sw` entrypoint and subcommands
- include database, user, dev, and profiler commands
- wire CLI build and CI install/release steps

CLI/src/commands/database/InfoCommand.kt

@@ -0,0 +1,25 @@
+package de.steamwar.commands.database
+
+import com.github.ajalt.clikt.core.CliktCommand
+import com.github.ajalt.clikt.core.requireObject
+import com.github.ajalt.mordant.table.table
+import de.steamwar.db.Database
+import de.steamwar.db.execute
+import de.steamwar.db.useDb
+
+class InfoCommand: CliktCommand() {
+    val db by requireObject<Database>()
+
+    override fun run() = useDb {
+        val tables = execute("SHOW TABLES") { it.getString(1) }
+
+        echo(
+            table {
+                header { row("Name") }
+                body {
+                    tables.map { row(it) }
+                }
+            }
+        )
+    }
+}