Add a feature to create automatically a random temporary directory for base path & remove Clone (#6221)

* Initial commit

Forked at: 4adac40c07
Parent branch: origin/master

* Add a feature to create automatically a temporary directory for base path

* doc fix and todos

* use parking_lot instead

* use refcell instead since we stay in the main thread

* remove Clone derives

* add test

* solving dependency issue

* clarifying doc

* conflict argument with base-path

* WIP

Forked at: 4adac40c07
Parent branch: origin/master

* revert dep deletion

* fixing test and making base_path optional

* hold basepath while the service is running

* fixes

* Update client/cli/src/params/shared_params.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update client/service/Cargo.toml

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update client/cli/src/commands/mod.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update client/service/src/config.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* WIP

Forked at: 4adac40c07
Parent branch: origin/master

* improve doc

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

substrate/Cargo.lock

@@ -5829,7 +5829,6 @@ dependencies = [
  "atty",
  "chrono",
  "derive_more",
- "directories",
  "env_logger 0.7.1",
  "fdlimit",
  "futures 0.3.4",
@@ -6607,6 +6606,7 @@ name = "sc-service"
 version = "0.8.0-rc3"
 dependencies = [
  "derive_more",
+ "directories",
  "exit-future",
  "futures 0.1.29",
  "futures 0.3.4",
@@ -6662,6 +6662,7 @@ dependencies = [
  "substrate-prometheus-endpoint",
  "substrate-test-runtime-client",
  "sysinfo",
+ "tempfile",
  "tracing",
  "wasm-timer",
 ]