AmountOfMoney/EN: Make ruleIntervalMax, ruleIntervalMin symmetric

Summary:
When I was working on some related diffs, I noticed that there were some
asymmetries between the regexes for ruleIntervalMax and ruleIntervalMin:
 - we had no support for "at most", even though we did have "at least"
 - we had no support for "not? less than"
 - the ordering of the different constructions didn't match

This a minor tweak to make things match better

Reviewed By: patapizza

Differential Revision: D20484594

fbshipit-source-id: c3c54a9cc1b83402e42634b7a98a1a3b8cc5e09c

Duckling/AmountOfMoney/EN/Corpus.hs

@@ -220,12 +220,15 @@ allExamples = concat
              [ "under seven euros"
              , "less than 7 EUR"
              , "lower than 7€"
+             , "no more than 7 euros"
+             , "at most 7€"
              ]
   , examples (above Dollar 1.42)
              [ "more than 1 dollar and forty-two cents"
              , "at least $1.42"
              , "over 1.42 dollars"
              , "above a dollar and 42 cents"
+             , "no less than $1.42"
              ]
    , examples (simple INR 5e5)
               [ "5 lakh rupees"

Duckling/AmountOfMoney/EN/Rules.hs

@@ -337,7 +337,7 @@ ruleIntervalMax :: Rule
 ruleIntervalMax = Rule
   { name = "under/less/lower/no more than <amount-of-money>"
   , pattern =
-    [ regex "under|(less|lower|not? more) than"
+    [ regex "under|at most|(less|lower|not? more) than"
     , Predicate isSimpleAmountOfMoney
     ]
   , prod = \tokens -> case tokens of
@@ -352,7 +352,7 @@ ruleIntervalMin :: Rule
 ruleIntervalMin = Rule
   { name = "over/above/at least/more than <amount-of-money>"
   , pattern =
-    [ regex "over|above|at least|more than"
+    [ regex "over|above|at least|(more|not? less) than"
     , Predicate isSimpleAmountOfMoney
     ]
   , prod = \tokens -> case tokens of