added Dispenser interface

src/interfaces/DispenserInterface.ts

@@ -0,0 +1,6 @@
+export interface DispenserCreationParams {
+  maxTokens: string
+  maxBalance: string
+  withMint?: boolean // true if we want to allow the dispenser to be a minter
+  allowedSwapper?: string // only account that can ask tokens. set address(0) if not required
+}

src/interfaces/index.ts

@@ -1,4 +1,4 @@
 export * from './FixedRateInterface'
 export * from './PoolInterface'
 export * from './Erc20Interface'
-// export * from './DispenserInterface'
+export * from './DispenserInterface'