Merge pull request #79 from phaazon/dependabot/cargo/master/glam-gte-0.10-and-lt-0.21

Update glam requirement from >=0.10, <0.18 to >=0.10, <0.21

Cargo.toml

@@ -29,7 +29,7 @@ std = []
 
 [dependencies]
 cgmath = { version = ">=0.17, <0.19", optional = true }
-glam = { version = ">=0.10, <0.18", optional = true }
+glam = { version = ">=0.10, <0.21", optional = true }
 nalgebra = { version = ">=0.21, <0.28", optional = true }
 serde =  { version = "1", features = ["derive"], optional = true }