Mark every project as being part of the workspace. r=nalexander

This allows `cargo test --all` to work.

Cargo.toml

@@ -10,6 +10,9 @@ name = "mentat"
 version = "0.4.0"
 build = "build/version.rs"
 
+[workspace]
+members = []
+
 [build-dependencies]
 rustc_version = "0.1.7"
 

core/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_core"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 num = "0.1.35"

db/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_db"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 error-chain = "0.8.0"

edn/Cargo.toml

@@ -2,6 +2,7 @@
 name = "edn"
 version = "0.1.0"
 authors = ["Joe Walker <jwalker@mozilla.com>"]
+workspace = ".."
 
 license = "Apache-2.0"
 repository = "https://github.com/mozilla/mentat"

parser-utils/Cargo.toml

@@ -2,6 +2,7 @@
 name = "mentat_parser_utils"
 version = "0.1.0"
 authors = ["Victor Porof <vporof@mozilla.com>", "Richard Newman <rnewman@mozilla.com>"]
+workspace = ".."
 
 [dependencies]
 combine = "2.1.1"

query-algebrizer/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_query_algebrizer"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 [dependencies.mentat_core]

query-parser/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_query_parser"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 combine = "2.1.1"

query-translator/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_query_translator"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 [dependencies.mentat_sql]

query/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_query"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 

sql/Cargo.toml

@@ -1,3 +1,4 @@
 [package]
 name = "mentat_sql"
 version = "0.0.1"
+workspace = ".."

tx-parser/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_tx_parser"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 combine = "2.1.1"

tx/Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "mentat_tx"
 version = "0.0.1"
+workspace = ".."
 
 [dependencies]
 [dependencies.edn]