Add console, klog, and writef modules.

They are not complete, but adding to checkpoint progress.

src/hulk/hulk.d

@@ -6,11 +6,14 @@ module hulk.hulk;
 import hulk.header;
 import hulk.bootinfo;
 import hulk.framebuffer;
+import hulk.console;
 import hos.memory;
 import ldc.attributes;
 import hulk.kfont;
+static import hulk.klog;
 
 private __gshared Framebuffer fb;
+private __gshared Console console;
 
 extern extern(C) __gshared ubyte _hulk_total_size;
 
@@ -44,6 +47,15 @@ extern(C) void hulk_start(ulong rdi, ulong rsi, ulong rdx, BootInfo * bootinfo)
         x += kfont.advance;
     }
 
+    console.initialize(&fb);
+    console.clear();
+    hulk.klog.initialize(&console);
+
+    for (size_t i = 1u; i != 0u; i++)
+    {
+        hulk.klog.writef("Hello! i = %010u\n", i);
+    }
+
     for (;;)
     {
     }