Setting to disable lazy loading from toString()

[eakst7]

PR #401 introduced lazy loading values from toString() methods.

Unfortunately, this can mean a lot of additional clicking necessary to show the desired debug information. Setting java.debug.settings.showToString to false disables the entire feature. It would be beneficial to disable only the lazy loading.

[testforstephen]

VS Code 1.67.0 has provided such a setting debug.autoExpandLazyVariables to allow you to expand the variable full value by default. So closing this issue.