add argument splicing (aka unpacking, aka splatting); add test-splice…

* Add Map factory and Integer draft

* Fix Integer factory

* Add map_isArray()

* Fix String factory

* Add Symbol factory

* Fix Map factory

* Add Array factory

* Add Function and Syntax factories

* Fix _checkType

* Add runtimeError for bad arguments in factory functions

* Change makeMapCapacity with malloc instead of realloc

Correctly add slice '[n:m]' for strings and array-like maps

Use implicit rules to build binary; add compiler/linker search locati…

Add TYPESIG and CASE macros to switch between types combinations more elegantly

Memory optimisation

Pr. Piumarta various fixes

Add slice '[n:m]' for strings and array-like maps

an expression, add for in structure, refactor apply (merge with invoke),
transform millis to microseconds, mix boxed/unboxed integers

* Add try, catch, finally in the syntax

* Add throw, try, catch, finally mechanism in the interpreter

* Enhance runtime errors with file and line

* update test files