moved crates in lib/ to src/, renamed crates, modified some files' text (#660)

moved crates in lib/ to src/, renamed crates, modified some files' text (#660)

cranelift/entity/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+authors = ["The Cranelift Project Developers"]
+name = "cranelift-entity"
+version = "0.28.0"
+description = "Data structures using entity references as mapping keys"
+license = "Apache-2.0 WITH LLVM-exception"
+documentation = "https://cranelift.readthedocs.io/"
+repository = "https://github.com/CraneStation/cranelift"
+categories = ["no-std"]
+readme = "README.md"
+keywords = ["entity", "set", "map"]
+edition = "2018"
+
+[features]
+default = ["std"]
+std = []
+core = []
+
+[badges]
+maintenance = { status = "experimental" }
+travis-ci = { repository = "CraneStation/cranelift" }