Add feature sqlite

Cargo.lock

@@ -995,6 +995,17 @@ version = "0.2.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9385f66bf6105b241aa65a61cb923ef20efc665cb9f9bb50ac2f0c4b7f378d41"
 
+[[package]]
+name = "libsqlite3-sys"
+version = "0.22.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "290b64917f8b0cb885d9de0f9959fe1f775d7fa12f1da2db9001c1c8ab60f89d"
+dependencies = [
+ "cc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "linked-hash-map"
 version = "0.5.4"
@@ -1824,6 +1835,7 @@ dependencies = [
  "hex",
  "itoa",
  "libc",
+ "libsqlite3-sys",
  "log",
  "memchr",
  "once_cell",

Cargo.toml

@@ -12,3 +12,7 @@ juniper_warp = "^0.6"
 juniper-from-schema = { git = "https://github.com/davidpdrsn/juniper-from-schema" }
 sqlx = { version = "^0.5", features = ["runtime-tokio-native-tls"] }
 warp = { version = "^0.3", default-features = false, features = ["compression", "tls"] }
+
+[features]
+default = ["sqlite"]
+sqlite = ["sqlx/sqlite"]