docs/develop: Mass directory restructure.

Now vaguely follows the tree structure of "src", with the exception of
directories that described subsystems spanning more than one "kit" or
"server" (e.g. "media", "midi", "bluetooth") -- these have been left as their
own top-level directory within docs/develop.

docs/develop/kits/interface/BRegion/test_results

@@ -0,0 +1,34 @@
+Tests executed on a Duron 1200
+
+ikki:~/projects/current# tests/UnitTester BRegion
+------------------------------------------------------------------------------
+Tests
+------------------------------------------------------------------------------
+BRegion::Construction Test
+  + PASSED
+    Clock time: 0 ms
+
+BRegion::Exclude Test
+  + PASSED
+    Clock time: 251 ms
+
+BRegion::Include Test
+  + PASSED
+    Clock time: 260 ms
+
+BRegion::Intersect Test
+  + PASSED
+    Clock time: 102 ms
+
+BRegion::OffsetBy Test
+  + PASSED
+    Clock time: 0 ms
+
+------------------------------------------------------------------------------
+Results
+------------------------------------------------------------------------------
++ PASSED
+
+
+As you can see, it may be worth optimizing especially the Exclude and Include methods.
+See RegionSupport.cpp (in particular RSub() and ROr()) for more info.

docs/develop/kits/interface/BRegion/test_results_R5

@@ -0,0 +1,30 @@
+Tests executed on a Duron 1200
+
+ikki:~/projects/current# tests/UnitTester -r5 BRegion
+------------------------------------------------------------------------------
+Tests
+------------------------------------------------------------------------------
+BRegion::Construction Test
+  + PASSED
+    Clock time: 0 ms
+
+BRegion::Exclude Test
+  + PASSED
+    Clock time: 284 ms
+
+BRegion::Include Test
+  + PASSED
+    Clock time: 265 ms
+
+BRegion::Intersect Test
+  + PASSED
+    Clock time: 113 ms
+
+BRegion::OffsetBy Test
+  + PASSED
+    Clock time: 0 ms
+
+------------------------------------------------------------------------------
+Results
+------------------------------------------------------------------------------
++ PASSED