Flux: float literals need to include exponent format

The definition of at https://v2.docs.influxdata.com/v2.0/reference/flux/language/lexical-elements/#floating-point-literals
needs to incorporate an exponent as seen in the example at https://docs.influxdata.com/influxdb/v1.3/write_protocols/line_protocol_reference/#data-types

Thanks @DG12. Will you add this as an issue on the Flux project?

Created Issue #1323 regarding floating point exponent AND leading sign .
Created issue #1324 regarding integer leading sign.

Is this the proper place to discuss fixed point verses floating point?