Conflicts between packages due to inconsistent casing

[isc-shuliu]

@isc-tleavitt @isc-kiyer

In ObjectScript, there are error codes (5092, 5093) for packages/classes sharing otherwise the same name except for casing. In the current community registry, we already have such problem. For example, package csvgen is under package community and package demo-pandas-analytics is under Community. This makes csvgen and demo-pandas-analytics not compatible in the same environment. But such incompatibility is really unnecessary and should be fixed.

Some ideas:

• Should we implement a warning when user publishes a package?
• Maybe advocate/enforce a naming convention?
• Even better, can we make the package name parametrizable?

See also #527