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/codegen/Cargo.toml

@@ -0,0 +1,44 @@
+[package]
+authors = ["The Cranelift Project Developers"]
+name = "cranelift-codegen"
+version = "0.28.0"
+description = "Low-level code generator library"
+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 = ["compile", "compiler", "jit"]
+build = "build.rs"
+edition = "2018"
+
+[dependencies]
+cranelift-entity = { path = "../cranelift-entity", version = "0.28.0", default-features = false }
+cranelift-bforest = { path = "../cranelift-bforest", version = "0.28.0", default-features = false }
+failure = { version = "0.1.1", default-features = false, features = ["derive"] }
+failure_derive = { version = "0.1.1", default-features = false }
+hashmap_core = { version = "0.1.9", optional = true }
+target-lexicon = { version = "0.2.0", default-features = false }
+log = { version = "0.4.6", default-features = false }
+# It is a goal of the cranelift-codegen crate to have minimal external dependencies.
+# Please don't add any unless they are essential to the task of creating binary
+# machine code. Integration tests that need external dependencies can be
+# accomodated in `tests`.
+
+[build-dependencies]
+cranelift-codegen-meta = { path = "meta", version = "0.28.0" }
+
+[features]
+# The "std" feature enables use of libstd. The "core" feature enables use
+# of some minimal std-like replacement libraries. At least one of these two
+# features need to be enabled.
+default = ["std"]
+std = ["cranelift-entity/std", "cranelift-bforest/std", "target-lexicon/std"]
+core = ["hashmap_core"]
+# This enables some additional functions useful for writing tests, but which
+# can significantly increase the size of the library.
+testing_hooks = []
+
+[badges]
+maintenance = { status = "experimental" }
+travis-ci = { repository = "CraneStation/cranelift" }