- type namen worden gesuffixed met hun definierde module naam

StdEnv 2.0 in which DynamicTemp is added.

 (changes are commented with "MW0")

algorihm so that typing error messages can indicate the alternative in
which the error occured. Before, these error messages always located the
first alternative/function type

    (new module: comparedefimp)
- implemented array patterns. Further work: arrays are in lazy context (should be strict),
    currently only one dimensional arrays
- optimised memory usage for explicit imports