Rename maketext tool to make-keyboard-text

Change-Id: Icceda22aec75f9e3602da8775c0e94b110283575
diff --git a/tools/make-keyboard-text/etc/manifest.txt b/tools/make-keyboard-text/etc/manifest.txt
new file mode 100644
index 0000000..8ad4db0
--- /dev/null
+++ b/tools/make-keyboard-text/etc/manifest.txt
@@ -0,0 +1 @@
+Main-Class: com.android.inputmethod.keyboard.tools.MakeKeyboardText