v0.19.7

SymbolicUtils v0.19.7

Diff since v0.19.6

Closed issues:

• Manual control of simplification and evaluation (#327)
• A Literal module (#340)
• Certain expression manipulation can lead to errors (#424)
• SymbolicRegression.jl simplification issue (#428)

Merged pull requests:

• Added ordering for types (#413) (@gronniger)
• fix expand of zero (#427) (@shashi)
• LiteralReal (#429) (@shashi)