Vendor rawler 0.7.2 unmodified

The crate as crates.io publishes it, minus .cargo-ok, its Cargo.lock and
data/testdata (13 MB of sample files only its own tests read). Not yet
routed through [patch.crates-io]; the next commit is the patch.

third_party/rawler-0.7.2/data/cameras/leica/vlux4.toml

@@ -0,0 +1,16 @@
+make = "LEICA"
+model = "V-LUX 4"
+clean_make = "Leica"
+clean_model = "V-LUX 4"
+#blackpoint = 0
+whitepoint = 4095
+color_pattern = "GBRG"
+
+[cameras.color_matrix]
+A = [0.8452, -0.35, 0.0533, -0.2458, 0.9488, 0.3493, -0.016, 0.0993, 0.549]
+D65 = [0.8112, -0.2563, -0.074, -0.373, 1.1784, 0.2197, -0.0941, 0.2075, 0.4933]
+
+[[cameras.modes]]
+mode = "4:3"
+active_area = [0, 0, 0, 0]
+