…versions

- this is my bad, I didn't realize `this.load` came out _much_ later than `this.resolve`
  - c.f. https://github.com/rollup/rollup/blob/master/CHANGELOG.md#2600

- since we're backward-compatible w/ Rollup `1.26.3`, add in a version check for the type-only fix
  - the type-only fix will error out in Rollup versions less than `2.60.0`, so instead of erroring out, just skip this functionality

- TODO: should move back to using `semver` that was removed in 08d2f5b

- reverts the `semver` removal in 08d2f5b
  - add back the TS version range check

- add a Rollup version range check, fixing an old issue
- check `this.load` Rollup version with `semver` instead of string comparison

- add `semver` to `external`s list
  - also remove `resolve` as it's no longer used as of 74f6761
  - and re-organize the list so that Node built-ins are in one section while deps are in another
    - makes it clearer what we're marking as external

- so it doesn't just silently skip the type-only fix on Rollup versions <2.60.0

- `TS_VERSION_RANGE`, `ROLLUP_VERSION_RANGE`, `RPT2_VERSION` were previously only defined during builds, so would cause tests to fail
  - add these vars as (namespaced) globals in the Jest config so that they can be used in tests too
  - if they don't exist on `global` (or if `global` doesn't exist), then use the built strings instead
  - see in-line comments for more details

- also reorder `re` placement to match the usage order in the code
- and fix lint issues (`no-string-literal`)