Add prml-generic-asset-rpc-runtime-api to the build (#149)

Use relative local paths not the crates.io creates in prml-generic-asset-rpc-* deps
Bump rust version in circleci

Author: jordy25519

.circleci/config.yml

@@ -76,7 +76,7 @@ jobs:
     resource_class: large
     environment:
       BASH_ENV: ~/.cargo/env
-      RUST_VERSION: 1.44.1
+      RUST_VERSION: 1.46.0
       RUSTC_WRAPPER: sccache
       SCCACHE_CACHE_SIZE: 10G
     steps:
@@ -92,7 +92,7 @@ jobs:
     resource_class: large
     environment:
       BASH_ENV: ~/.cargo/env
-      RUST_VERSION: 1.44.1
+      RUST_VERSION: 1.46.0
       RUSTC_WRAPPER: sccache
       SCCACHE_CACHE_SIZE: 10G
     steps: