chore: update version documents

Author: hoffstadt

docs/changelog.txt

@@ -5,7 +5,7 @@
 Below is the change log for typical users. Minor and older changes stripped
 away, please see git history for details.
 
-- v0.5.4 (2025-xx-xx) add ACES & Reinhard tonemapping
+- v0.6.0 (2025-xx-xx) add ACES & Reinhard tonemapping
                       add exposure, contrast, brightness, & saturation controls
                       fix long standing shadow mapping viewport technique issue
 - v0.5.3 (2025-08-01) fix pl_ds.h hm32 reset (v1.0.1)

docs/version.txt

@@ -1,4 +1,4 @@
-v0.5.4 WIP
+v0.6.0 WIP
 
 -----------------------------------------------------------------------------
                              Versioning
@@ -81,11 +81,11 @@ the API is complete. It just means we won't break what currently exists.
 * Date & Time         v1.0.0 (pl_datetime_ext.h)
 * Compression         v1.0.0 (pl_compress_ext.h)
 * Virtual File System v1.0.0 (pl_vfs_ext.h)
+* ECS                 v1.0.0 (pl_ecs_ext.h)
 
 ## Nearly Stable Extensions
 
 * Resource            v0.2.2 (pl_resource_ext.h)
-* ECS                 v0.3.1 (pl_ecs_ext.h)
 * Bvh                 v0.2.0 (pl_bvh_ext.h)
 * Physics             v0.2.0 (pl_physics_ext.h)
 * Collision           v0.2.0 (pl_collision_ext.h)