feat: support Object.values() (#518)

Adds support for `Object.values()`

feat: add string startsWith method (#514)

Adds startsWith method to the String builtins.

fix: number to int conversions (#474)

Fix toInt32, toUint32 conversions which caused test failures on arm64 by
leveraging the power of go casts to simplify the conversion from float64
to integer types.

fix(ast): invalid idx1 for new expression (#473)

Fix invalid Idx1() return for NewExpression when there are no
parenthesis.

Fixes #261

chore: update logex (#442)

Update github.com/chzyer/logex to v1.2.1 which has an explicit
LICENSE file to prevent package without alarming compliance
tools.

Signed-off-by: eriknordmark <erik@zededa.com>