File naming convention change

examples/drawing_to_screen_using_windows_api.core

@@ -1,10 +1,10 @@
-#import "base.kl"
-#import "arena.kl"
-#import "os_windows.kl"
-#import "kernel32.kl"
-#import "gdi32.kl"
-#import "user32.kl"
-#import "winmm.kl"
+#import "Base.core"
+#import "Arena.core"
+#import "Windows.core"
+#import "KERNEL32.core"
+#import "GDI32.core"
+#import "USER32.core"
+#import "WINMM.core"
 
 Vec2I :: struct;; x: S64; y: S64
 Vec2  :: struct;; x: F32; y: F32

examples/operator_overloading.core

@@ -19,11 +19,4 @@ main :: (): int
   e := c - d
   Assert(e.x == 6 && e.y == 8 && e.z == 10)
 
-  test_string := "
-
-  Memes
-
-
-  "
-
   return 0

examples/raymarcher.core

@@ -1,4 +1,4 @@
-#import "math.kl"
+#import "Math.core"
 
 Epsilon  :: 0.00001
 Screen   :  *U32
@@ -90,13 +90,13 @@ Raymarcher_Update :: ()
 // Windows specific code
 //
 
-#import "base.kl"
-#import "arena.kl"
-#import "os_windows.kl"
-#import "kernel32.kl"
-#import "gdi32.kl"
-#import "user32.kl"
-#import "winmm.kl"
+#import "Base.core"
+#import "Arena.core"
+#import "Windows.core"
+#import "KERNEL32.core"
+#import "GDI32.core"
+#import "USER32.core"
+#import "WINMM.core"
 
 Windows_Bitmap :: struct
   size: Vec2I