Convert to a workspace

Convert the vhost git repository into a crate, which hosts vhost crate
for now. Support for vhost-user-backend and other crates will be added
later on.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Cargo.toml

@@ -1,36 +1,5 @@
-[package]
-name = "vhost"
-version = "0.5.0"
-keywords = ["vhost", "vhost-user", "virtio", "vdpa"]
-description = "a pure rust library for vdpa, vhost and vhost-user"
-authors = ["Liu Jiang <gerry@linux.alibaba.com>"]
-repository = "https://github.com/rust-vmm/vhost"
-documentation = "https://docs.rs/vhost"
-readme = "README.md"
-license = "Apache-2.0 OR BSD-3-Clause"
-edition = "2018"
+[workspace]
 
-[package.metadata.docs.rs]
-all-features = true
-
-[features]
-default = []
-vhost-vsock = []
-vhost-kern = []
-vhost-vdpa = ["vhost-kern"]
-vhost-net = ["vhost-kern"]
-vhost-user = []
-vhost-user-master = ["vhost-user"]
-vhost-user-slave = ["vhost-user"]
-
-[dependencies]
-bitflags = "1.0"
-libc = "0.2.39"
-
-vmm-sys-util = "0.10.0"
-vm-memory = "0.9.0"
-
-[dev-dependencies]
-tempfile = "3.2.0"
-vm-memory = { version = "0.9.0", features=["backend-mmap"] }
-serial_test = "0.5"
+members = [
+    "crates/vhost",
+]