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/sony/a7sm2.toml

@@ -0,0 +1,14 @@
+make = "SONY"
+model = "ILCE-7SM2"
+clean_make = "Sony"
+clean_model = "ILCE-7SM2"
+##blackpoint = 512
+#whitepoint = 16300
+color_pattern = "RGGB"
+active_area = [0, 0, 0, 0]
+crop_area = [8, 8, 40, 8]
+bps = 8
+
+[cameras.color_matrix]
+A = [0.6263, -0.1964, 0.0102, -0.4375, 1.2428, 0.2171, -0.066, 0.1559, 0.7146]
+D65 = [0.5838, -0.143, -0.0246, -0.3497, 1.1477, 0.2297, -0.0748, 0.1885, 0.5778]