Rococo <> Wococo relayer balance guard (#998)

* relayer balance guards in Rococo <> Wococo

* removed printlns

* update constant

* update constant

* start balance guard for Wococo -> Rococo

* Update relays/bin-substrate/src/chains/wococo_headers_to_rococo.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>

* Update relays/bin-substrate/src/chains/wococo_headers_to_rococo.rs

Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomusdrw@users.noreply.github.com>
Co-authored-by: Tomasz Drwięga <tomasz@parity.io>

bridges/primitives/chain-rococo/Cargo.toml

@@ -8,6 +8,7 @@ license = "GPL-3.0-or-later WITH Classpath-exception-2.0"
 
 [dependencies]
 parity-scale-codec = { version = "2.0.0", default-features = false, features = ["derive"] }
+smallvec = "1.6"
 
 # Bridge Dependencies
 bp-header-chain = { path = "../header-chain", default-features = false }
@@ -16,6 +17,7 @@ bp-polkadot-core = { path = "../polkadot-core", default-features = false }
 bp-runtime = { path = "../runtime", default-features = false }
 
 # Substrate Based Dependencies
+frame-support = { git = "https://github.com/paritytech/substrate", branch = "master" , default-features = false }
 sp-api = { git = "https://github.com/paritytech/substrate", branch = "master" , default-features = false }
 sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
 sp-std = { git = "https://github.com/paritytech/substrate", branch = "master", default-features = false }
@@ -28,6 +30,7 @@ std = [
 	"bp-messages/std",
 	"bp-polkadot-core/std",
 	"bp-runtime/std",
+	"frame-support/std",
 	"parity-scale-codec/std",
 	"sp-api/std",
 	"sp-runtime/std",