UI improvements, CLI fallbacks

clients/cli/src/main/kotlin/com/jaytux/phoebench/clients/cli/CLI.kt

@@ -6,6 +6,7 @@ import com.github.ajalt.clikt.parameters.groups.single
 import com.github.ajalt.clikt.parameters.options.*
 import com.github.ajalt.clikt.parameters.types.float
 import com.github.ajalt.clikt.parameters.types.inputStream
+import com.jaytux.phoebench.client.cli.CliVersion
 import com.jaytux.phoebench.common.TimeUnit
 import io.ktor.util.reflect.*
 import io.ktor.utils.io.*
@@ -23,6 +24,10 @@ object CLI {
             help = "Disable all interactive input (makes arguments marked with (*) mandatory)"
         ).flag(default = false)
 
+        init {
+            versionOption(CliVersion.VERSION)
+        }
+
         override fun run() {
             val sub = currentContext.invokedSubcommand
             if(sub == null) {
@@ -208,6 +213,13 @@ object CLI {
                 override fun run() = ProjectHandlers.newData(parent.finder, version, warmup, measurement, unit, input, hardware)
             }
         }
+
+        @Suppress("unused")
+        class Version : CliktCommand(name = "version") {
+            override fun run() {
+                echo("phoebench-cli version ${CliVersion.VERSION}")
+            }
+        }
     }
 
     fun main(args: Array<String>) {