Incremental type interface

[tmteam]

As char is arithmetic type - it can be used in such an expressions:

word = [/'a'../'c'] #'abc'

ips = [127.0.0.1.. 127.0.0.5] # [127.0.0.1, 127.0.0.2, 127.0.0.3, 127.0.0.4, 127.0.0.5]

range(a,b) = [a..b]

word2 = range(/'a',/'b') #'abc'
range2 = range(1,3) #[1,2,3]

so the arithmetic is inteface:

Incremental<T> <= IComparable<T>:
    T Increment(T)
    T Decrement(T)
    T MaxValue()
    T MinValue()

Numbers, chars, days, months, ip and other types has to implement the interface

any
 |-----incremental : comaprable
                 |---------numbers
                 |---------char
                 |---------ip