Numbrs version 1.1.0
Changes since v1.0.0
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* Support implicit multiplication for group RHS
* Give implicit operations higher precedence
* Support unit conversion
* Implement unit prefixes and suffixes
* Support loading a default list of unit definitions
* Create base unit variables
* Add the rest of the base physical quantities
* Implement parsing (unary) prefix operators
* Implement assigning units
* Fix several unit/quantity arithmetic errors
* Return errors instead of panicking during expression evaluation
* Allow comments in input
* Change assignment operator to `=`
* Bump version to 1.1.0