Migrate all project files from repo root into prj/<name>/

Moved all 40 existing projects' .prj/.dat files (Layer weights, training
batches, legacy .weights.dat/.test.dat artifacts) from the flat repo root
into their own prj/<name>/ folder via git mv, matching the new path
convention from the previous commit. Filenames are unchanged, only the
directory. Non-project files at root (CLAUDE.md, Makefile, batch/moby
text corpora, the stray Layer.0.training.mat) were left in place.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016K8Gu7Qejd11JbdiHZqYAs

prj/norb_small/norb_small.Layer.0.bh.dat

@@ -0,0 +1,3 @@
+ARMA_MAT_TXT_FN008
+1 32
+  -1.5989872488833243e-01   6.7895066961389805e-01  -2.3571558415381311e-01  -3.3260386606858711e-01  -2.4772211269553113e-01  -1.8470120277022325e-02  -1.7280314611042169e-01   6.8122582115056285e-02  -1.6059764176398092e-01   1.9632450726668382e-01  -2.9738047225153075e-01  -2.3460462582495623e-02   4.6616522325546819e-02  -3.2040879285614010e-01   4.4265035974959982e-02  -2.1743697280652327e-01  -5.8008249503006662e-02  -4.3142089126557377e-02  -3.2869541889215304e-01  -7.0202112044565820e-02  -2.0971498420455720e-01   4.4131460075223380e-02   4.6364772368708403e-02  -2.9743547457086478e-01   1.6853110963286771e-02  -3.2416167611209118e-01  -1.6436358444621137e-02  -2.4662579059568257e-01  -2.2003754006700293e-01  -2.2655095087112362e-01  -3.1484002724447291e-01  -4.4687183897029872e-02

prj/norb_small/norb_small.prj

@@ -0,0 +1,37 @@
+{
+	"stack" : 
+	{
+		"layers" : 
+		[
+			{
+				"id" : 0,
+				"name" : "Layer",
+				"numContext" : 0,
+				"numHidden" : 32,
+				"numVisibleX" : 96,
+				"numVisibleY" : 96,
+				"rbm" : 
+				{
+					"params" : 
+					{
+						"doGaussianHidden" : 0,
+						"doGaussianVisible" : 1,
+						"doRaoBlackwell" : 1,
+						"doSampleBatch" : 0,
+						"gibbsDoSampleHidden" : 0,
+						"gibbsDoSampleVisible" : 0,
+						"learningRate" : 0.05000000074505806,
+						"miniBatchSize" : 100,
+						"momentum" : 0.5,
+						"numEpochs" : 1000,
+						"numGibbs" : 3,
+						"weightDecay" : 0.0
+					}
+				}
+			}
+		],
+		"name" : "norb_small",
+		"type" : 1,
+		"type_string" : "Deep"
+	}
+}