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/fuji/x-a7.toml

@@ -0,0 +1,12 @@
+make = "FUJIFILM"
+model = "X-A7"
+clean_make = "Fujifilm"
+clean_model = "X-A7"
+#blackpoint = 1024
+whitepoint = 16383
+color_pattern = "RGGB"
+hints = ["jpeg32"]
+
+[cameras.color_matrix]
+A = [2.2235, -1.5902, 0.0516, -0.3091, 1.1246, 0.2102, 0.0018, 0.047, 0.6638]
+D65 = [1.5055, -0.7391, -0.1274, -0.4062, 1.2071, 0.2238, -0.061, 0.1217, 0.6147]