Parse errors should show location of error in input sql string

[DerSaidin]

When rust compiler finds a problem, it shows me exactly where to look:

error[E0308]: mismatched types
  --> src/main.rs:73:12
   |
72 | fn foo() -> String {
   |             ------ expected `std::string::String` because of return type
73 |     return 42;
   |            ^^
   |            |
   |            expected struct `std::string::String`, found integer
   |            help: try using a conversion method: `42.to_string()`

When Parser::parse_sql(...) fails, it does not tell the user what part of the input caused the error:

sql parser error: Expected end of statement, found: ENGINE

The error should provide a position in the input sql string. Bonus points if it has nice presentation like the rust compiler error messages.

[maxcountryman]

I believe the intent is to address this kind of thing in #189.