isolinux: add files for iso booting

These files will be used by CoreOS Assembler to be embedded
into an ISO image that can then be used for installing Fedora
or Red Hat CoreOS.

isolinux/boot.msg

@@ -0,0 +1,5 @@
+
+splash.lss
+
+ -  Press the 01<ENTER>07 key to begin the installation process.
+

isolinux/isolinux.cfg

@@ -0,0 +1,72 @@
+# Note this file mostly matches the isolinux.cfg file from the Fedora 
+# Server DVD iso. Diff this file with that file in the future to pick up
+# changes.
+serial 0
+default vesamenu.c32
+timeout 600
+
+display boot.msg
+
+# Clear the screen when exiting the menu, instead of leaving the menu displayed.
+# For vesamenu, this means the graphical background is still displayed without
+# the menu itself for as long as the screen remains in graphics mode.
+menu clear
+menu background splash.png
+menu title CoreOS Installer 
+menu vshift 8
+menu rows 18
+menu margin 8
+#menu hidden
+menu helpmsgrow 15
+menu tabmsgrow 13
+
+# Border Area
+menu color border * #00000000 #00000000 none
+
+# Selected item
+menu color sel 0 #ffffffff #00000000 none
+
+# Title bar
+menu color title 0 #ff7ba3d0 #00000000 none
+
+# Press [Tab] message
+menu color tabmsg 0 #ff3a6496 #00000000 none
+
+# Unselected menu item
+menu color unsel 0 #84b8ffff #00000000 none
+
+# Selected hotkey
+menu color hotsel 0 #84b8ffff #00000000 none
+
+# Unselected hotkey
+menu color hotkey 0 #ffffffff #00000000 none
+
+# Help text
+menu color help 0 #ffffffff #00000000 none
+
+# A scrollbar of some type? Not sure.
+menu color scrollbar 0 #ffffffff #ff355594 none
+
+# Timeout msg
+menu color timeout 0 #ffffffff #00000000 none
+menu color timeout_msg 0 #ffffffff #00000000 none
+
+# Command prompt text
+menu color cmdmark 0 #84b8ffff #00000000 none
+menu color cmdline 0 #ffffffff #00000000 none
+
+# Do not display the actual menu unless the user presses a key. All that is displayed is a timeout message.
+
+menu tabmsg Press Tab for full configuration options on menu items.
+
+menu separator # insert an empty line
+menu separator # insert an empty line
+
+label linux
+  menu label ^Install Fedora CoreOS
+  kernel vmlinuz
+  append initrd=initramfs.img nomodeset rd.neednet=1 coreos.inst=yes
+
+menu separator # insert an empty line
+
+menu end