test 'mint' purpose and script context creation.

Alongside a bunch of other stuff from the coverage list. In
  particular, the mint transaction contains:

  - reference inputs
  - multiple outputs, with assets, and type-0, type-1 and type-6
    addresses.
  - an output with a datum hash
  - an output with an inline script
  - carries an extra datum witness, preimage of the embedded hash
  - mint, with 2 policies purposely ordered wrongly, with 1 and 2
    assets purposely ordered wrong. One of the mint is actually a
    burn (i.e. negative quantity)

examples/acceptance_tests/script_context/v3/ctx/mint/tx.template

@@ -6,9 +6,9 @@
     , 1:
       [ { 0: h'6000000000000000000000000000000000000000000000000000000000'
 	, 1: 1000000
-	, 2: [1, 24(h'4463666F6F')]
+	, 2: [0, h'923918e403bf43c34b4ef6b48eb2ee04babed17320d8d1b9ff9ad086e86f44ec']
 	}
-      , { 0: h'6000000000000000000000000000000000000000000000000000000000'
+      , { 0: h'000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
 	, 1:
 	  [ 1000000
 	  , { h'{{ mint.mint_1.hash }}': { h'74756e61': 100000000000000 }
@@ -16,7 +16,7 @@
 	    }
 	  ]
 	}
-      , { 0: h'6000000000000000000000000000000000000000000000000000000000'
+      , { 0: h'100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
 	, 1:
 	  [ 1000000
 	  , { h'{{ mint.mint_2.hash }}': { h'63617264616e6f': 1 }
@@ -49,6 +49,10 @@
       ]
 
     , 17: 1
+
+    , 18:
+      [ [h'0000000000000000000000000000000000000000000000000000000000000000', 0]
+      ]
     },
 
     { 5:
@@ -56,6 +60,14 @@
       , [1, 1, 42, [1000000, 100000000]]
       ]
 
+    , 4:
+      [ 121([])
+      ]
+
+    , 7:
+      [ h'{{ mint.mint_1.cbor }}'
+      , h'{{ mint.mint_2.cbor }}'
+      ]
 
     },