contracts: Add salt argument to contract instantiation (#7482)

* pallet-contracts: Fix seal_restore_to to output proper module errors

Those errors where part of the decl_error for some time but where
never actually returned. This allows proper debugging of failed
restorations. Previously, any error did return the misleading
`ContractTrapped`.

* Bind UncheckedFrom<T::Hash> + AsRef<[u8]> everywhere

This allows us to make assumptions about the AccoutId
that are necessary for testing and in order to benchmark
the module properly.

This also groups free standing functions into inherent functions
in order to minimize the places where the new bounds need to
be specified.

* Rework contract address determination

* Do not allow override by runtime author
* Instantiate gained a new parameter "salt"

This change is done now in expecation of the upcoming code rent
which needs to change the instantiation dispatchable and
host function anyways.

The situation in where we have only something that is like CREATE2
makes it impossible for UIs to help the user to create an arbitrary
amount of instantiations from the same code.

With this change we have the same functionality as ethereum with
a CREATE and CREATE2 instantation semantic.

* Remove TrieIdGenerator

The new trait bounds allows us to remove this workaround
from the configuration trait.

* Remove default parameters for config trait

It should be solely the responsiblity to determine proper values for
these parameter. As a matter of fact most runtime weren't using these
values anyways.

* Fix tests for new account id type

Because of the new bounds on the trait tests can't get away by using
u64 as accound id. Replacing the 8 byte value by a 32 byte value
creates out quite a bit of code churn.

* Fix benchmarks

The benchmarks need adaption to the new instantiate semantics.

* Fix compile errors caused by adding new trait bounds
* Fix compile errors caused by renaming storage and rent functions
* Adapt host functions and dispatchables to the new salt
* Add tests for instantiate host functions (was not possible before)

* Add benchmark results

* Adapt to the new WeightInfo

The new benchmarks add a new parameter for salt "s" to the instantiate weights
that needs to be applied.

* Fix deploying_wasm_contract_should_work integration test

This test is adapted to use the new instantiate signature.

* Break overlong line

* Break more long lines

Co-authored-by: Parity Benchmarking Bot <admin@parity.io>

substrate/frame/contracts/fixtures/set_rent.wat

@@ -26,7 +26,7 @@
 	(func $call_2
 		(call $assert
 			(i32.eq
-				(call $seal_transfer (i32.const 68) (i32.const 8) (i32.const 76) (i32.const 8))
+				(call $seal_transfer (i32.const 136) (i32.const 32) (i32.const 100) (i32.const 8))
 				(i32.const 0)
 			)
 		)
@@ -47,10 +47,11 @@
 	;; Dispatch the call according to input size
 	(func (export "call")
 		(local $input_size i32)
-		(i32.store (i32.const 64) (i32.const 64))
-		(call $seal_input (i32.const 1024) (i32.const 64))
+		;; 4 byte i32 for br_table followed by 32 byte destination for transfer
+		(i32.store (i32.const 128) (i32.const 36))
+		(call $seal_input (i32.const 132) (i32.const 128))
 		(set_local $input_size
-			(i32.load (i32.const 64))
+			(i32.load (i32.const 132))
 		)
 		(block $IF_ELSE
 			(block $IF_2
@@ -81,25 +82,24 @@
 			(i32.const 0)
 			(i32.const 4)
 		)
+		(i32.store (i32.const 128) (i32.const 64))
 		(call $seal_input
-			(i32.const 0)
-			(i32.const 64)
+			(i32.const 104)
+			(i32.const 100)
 		)
 		(call $seal_set_rent_allowance
-			(i32.const 0)
-			(i32.load (i32.const 64))
+			(i32.const 104)
+			(i32.load (i32.const 128))
 		)
 	)
 
 	;; Encoding of 10 in balance
 	(data (i32.const 0) "\28")
 
-	;; Size of the buffer at address 0
-	(data (i32.const 64) "\40")
-
-	;; encoding of Charlies's account id
-	(data (i32.const 68) "\03")
-
 	;; encoding of 50 balance
-	(data (i32.const 76) "\32")
+	(data (i32.const 100) "\32")
+
+	;; [128, 132) size of seal input buffer
+
+	;; [132, inf) output buffer for seal input
 )