Update 'Works in progress'

Works-in-progress.md

@@ -1,4 +1,3 @@
-
 - [ ] Algorithm library
     - Non allocating
         - [ ] `sort`
@@ -18,4 +17,27 @@
         - [ ] `includes`
         - [ ] `equal`
         - [ ] `lexicographical_compare` (using 3-way comparisons)
-        - [ ] `includes`
+        - [ ] `includes`
+        - [ ] `begin` and `end`
+- Datastructures
+    - [ ] `flat_tree`
+    - [ ] UTF-8 `string` (See BigJ's string)
+    - [ ] `tuple`
+    - Filesystems
+        - [ ] Filesystem union
+        - [ ] PubSub plumber filesystem
+        - [ ] Typical ramfs
+        - [ ] TagFS
+            - [ ] PoC
+            - [ ] Research paper
+- Decisions
+    - [ ] polymorphic disk abstractions or templated abstractions?
+- Refactoring
+    - [ ] Rename `buffer` to `slice`
+    - [ ] Better split of algorithm headers
+    - [ ] Better split of the tests
+    - [ ] Use concepts for most things
+    - [ ] Polymorphic allocators everywhere (as allocator pointers in the template parameters)
+        - [ ] `generic_allocator` type erasing wrapper (`gp::function` style?)
+        - [ ] fix `ring_list`
+        - [ ] fix `function`