Add test data from serial-sensors(-proto) for gyro-free fusion

.gitmodules

@@ -0,0 +1,5 @@
+[submodule "tests/data"]
+    path = tests/data
+    url = https://github.com/sunsided/serial-sensors-test-data.git
+    shallow = true
+    branch = main

Cargo.toml

@@ -11,17 +11,29 @@ categories = ["aerospace", "algorithms", "science::robotics", "no-std", "embedde
 edition = "2021"
 
 [features]
+default = ["coordinate-frame"]
 std = ["minikalman/std", "num-traits/std"]
 unsafe = []
+coordinate-frame = ["dep:coordinate-frame"]
 
 [dependencies]
+coordinate-frame = { version = "0.4.0", optional = true, features = ["num-traits", "nalgebra"] }
 minikalman = { version = "0.6.0", default-features = false }
 num-traits = { version = "0.2.19", default-features = false }
+uniform-array-derive = "0.1.0"
 
 [dev-dependencies]
 ensure-uniform-type = "0.1.1"
 paste = "1.0.15"
 minikalman = { version = "0.6.0", features = ["std"] }
+csv = "1.3.0"
+serde = { version = "1.0.204", features = ["derive"] }
+kiss3d = "0.35.0"
+
+[[example]]
+name = "simulation"
+path = "examples/simulation.rs"
+required-features = ["std", "coordinate-frame"]
 
 [package.metadata.docs.rs]
 all-features = true

examples/data/fonts/firamono/OFL.txt

@@ -0,0 +1,93 @@
+Copyright (c) 2012-2013, The Mozilla Corporation and Telefonica S.A.
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
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+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
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