Switchup the dot operator (.+) to (+.) to respect precendence rules
@b3liever reported that `.+` caused issues with Nim precedence rules and instead uses `+.` in Manu https://github.com/b3liever/manu

This is a good idea that @hugogranstrom already implemented in numericalnim https://github.com/HugoGranstrom/numericalnim/commit/53de465b4aa808237e3928179c76ee6c74241505

While that departs from Julia notation, ultimately an unified API in the Nim community is more important.

## Transition

Duplicate the proc and tag the one with the old syntaxt as {.deprecated: "Use `+.` instead".}
