chore: add ascii art for Flow, Flow NFT Descriptor and Comptroller (sablier-labs#1332)

Author: smol-ninja

flow/src/FlowNFTDescriptor.sol

@@ -6,6 +6,24 @@ import { Base64 } from "@openzeppelin/contracts/utils/Base64.sol";
 
 import { IFlowNFTDescriptor } from "./interfaces/IFlowNFTDescriptor.sol";
 
+/*
+
+███████╗██╗      ██████╗ ██╗    ██╗    ███╗   ██╗███████╗████████╗
+██╔════╝██║     ██╔═══██╗██║    ██║    ████╗  ██║██╔════╝╚══██╔══╝
+█████╗  ██║     ██║   ██║██║ █╗ ██║    ██╔██╗ ██║█████╗     ██║
+██╔══╝  ██║     ██║   ██║██║███╗██║    ██║╚██╗██║██╔══╝     ██║
+██║     ███████╗╚██████╔╝╚███╔███╔╝    ██║ ╚████║██║        ██║
+╚═╝     ╚══════╝ ╚═════╝  ╚══╝╚══╝     ╚═╝  ╚═══╝╚═╝        ╚═╝
+
+██████╗ ███████╗███████╗ ██████╗██████╗ ██╗██████╗ ████████╗ ██████╗ ██████╗
+██╔══██╗██╔════╝██╔════╝██╔════╝██╔══██╗██║██╔══██╗╚══██╔══╝██╔═══██╗██╔══██╗
+██║  ██║█████╗  ███████╗██║     ██████╔╝██║██████╔╝   ██║   ██║   ██║██████╔╝
+██║  ██║██╔══╝  ╚════██║██║     ██╔══██╗██║██╔═══╝    ██║   ██║   ██║██╔══██╗
+██████╔╝███████╗███████║╚██████╗██║  ██║██║██║        ██║   ╚██████╔╝██║  ██║
+╚═════╝ ╚══════╝╚══════╝ ╚═════╝╚═╝  ╚═╝╚═╝╚═╝        ╚═╝    ╚═════╝ ╚═╝  ╚═╝
+
+*/
+
 /// @title FlowNFTDescriptor
 /// @notice See the documentation in {IFlowNFTDescriptor}.
 contract FlowNFTDescriptor is IFlowNFTDescriptor {

flow/src/SablierFlow.sol

@@ -22,6 +22,17 @@ import { Errors } from "./libraries/Errors.sol";
 import { Helpers } from "./libraries/Helpers.sol";
 import { Flow } from "./types/DataTypes.sol";
 
+/*
+
+███████╗ █████╗ ██████╗ ██╗     ██╗███████╗██████╗     ███████╗██╗      ██████╗ ██╗    ██╗
+██╔════╝██╔══██╗██╔══██╗██║     ██║██╔════╝██╔══██╗    ██╔════╝██║     ██╔═══██╗██║    ██║
+███████╗███████║██████╔╝██║     ██║█████╗  ██████╔╝    █████╗  ██║     ██║   ██║██║ █╗ ██║
+╚════██║██╔══██║██╔══██╗██║     ██║██╔══╝  ██╔══██╗    ██╔══╝  ██║     ██║   ██║██║███╗██║
+███████║██║  ██║██████╔╝███████╗██║███████╗██║  ██║    ██║     ███████╗╚██████╔╝╚███╔███╔╝
+╚══════╝╚═╝  ╚═╝╚═════╝ ╚══════╝╚═╝╚══════╝╚═╝  ╚═╝    ╚═╝     ╚══════╝ ╚═════╝  ╚══╝╚══╝
+
+*/
+
 /// @title SablierFlow
 /// @notice See the documentation in {ISablierFlow}.
 contract SablierFlow is

utils/src/SablierComptroller.sol

@@ -11,6 +11,24 @@ import { ISablierComptroller } from "./interfaces/ISablierComptroller.sol";
 import { Errors } from "./libraries/Errors.sol";
 import { RoleAdminable } from "./RoleAdminable.sol";
 
+/*
+
+███████╗ █████╗ ██████╗ ██╗     ██╗███████╗██████╗
+██╔════╝██╔══██╗██╔══██╗██║     ██║██╔════╝██╔══██╗
+███████╗███████║██████╔╝██║     ██║█████╗  ██████╔╝
+╚════██║██╔══██║██╔══██╗██║     ██║██╔══╝  ██╔══██╗
+███████║██║  ██║██████╔╝███████╗██║███████╗██║  ██║
+╚══════╝╚═╝  ╚═╝╚═════╝ ╚══════╝╚═╝╚══════╝╚═╝  ╚═╝
+
+ ██████╗ ██████╗ ███╗   ███╗██████╗ ████████╗██████╗  ██████╗ ██╗     ██╗     ███████╗██████╗
+██╔════╝██╔═══██╗████╗ ████║██╔══██╗╚══██╔══╝██╔══██╗██╔═══██╗██║     ██║     ██╔════╝██╔══██╗
+██║     ██║   ██║██╔████╔██║██████╔╝   ██║   ██████╔╝██║   ██║██║     ██║     █████╗  ██████╔╝
+██║     ██║   ██║██║╚██╔╝██║██╔═══╝    ██║   ██╔══██╗██║   ██║██║     ██║     ██╔══╝  ██╔══██╗
+╚██████╗╚██████╔╝██║ ╚═╝ ██║██║        ██║   ██║  ██║╚██████╔╝███████╗███████╗███████╗██║  ██║
+ ╚═════╝ ╚═════╝ ╚═╝     ╚═╝╚═╝        ╚═╝   ╚═╝  ╚═╝ ╚═════╝ ╚══════╝╚══════╝╚══════╝╚═╝  ╚═╝
+
+ */
+
 /// @title SablierComptroller
 /// @notice See the documentation in {ISablierComptroller}.
 /// @dev This contract inherits from OpenZeppelin's UUPS upgradeable contract and can perform an upgrade when used as an