sweep: allow force sweeps

lnrpc/walletrpc/walletkit.proto

@@ -197,6 +197,12 @@ message PendingSweep {
 
     // The requested fee rate, expressed in sat/byte, for this output.
     uint32 requested_sat_per_byte = 9 [json_name = "requested_sat_per_byte"];
+
+    /**
+    Whether this input must be force-swept. This means that it is swept even
+    if it has a negative yield.
+    */
+    bool force = 7 [json_name = "force"];
 }
 
 message PendingSweepsRequest {
@@ -221,6 +227,12 @@ message BumpFeeRequest {
     with.
     */
     uint32 sat_per_byte = 3 [json_name = "sat_per_byte"];
+
+    /**
+    Whether this input must be force-swept. This means that it is swept even
+    if it has a negative yield.
+    */
+    bool force = 4 [json_name = "force"];
 }
 
 message BumpFeeResponse {