Scientific Units: Add inverse units

[jtomanik]

Describe the issue
When numeric numeric value is divided by a scientific unit a reciprocal unit should be returned.

For example, correct result of a calculation:
9 / (3kg) = 3(kg^-1)

source: https://www.wolframalpha.com/input/?i=9+%2F+%283kg%29

should be 3 (Reciprocal Kilogram).

Expected behavior
Operations resulting in reciprocal units should be implemented and operations that divide numerical values by scientific units should return correct units.

Additional context
The ability to divide numeric values by a scientific units was removed #445
This ticket was created in order to create a proper solution for those operations.

[jtomanik]

In #445 I have removed following:
assertEquals(3(Kilogram), 9 / 3(Kilogram)) from ScientificValueTest.kt

and

infix operator fun <
    Quantity : PhysicalQuantity,
    Unit : ScientificUnit<Quantity>
    > Number.div(unit: ScientificValue<Quantity, Unit>) = toDecimal() / unit

infix operator fun <
    Quantity : PhysicalQuantity,
    Unit : ScientificUnit<Quantity>
    > Decimal.div(unit: ScientificValue<Quantity, Unit>) = div(unit, ::DefaultScientificValue)

from ScientificValue.kt

[Daeda88]

Closing in favour of #712 which should support inversion