DOC: Add ns documentation for possible sleeve tasks (#217)

* Add specific types for sleeve tasks
* Moved LocationName enum to overall enums file
* Add LocationName enum to those provided to player
* remove trailing s on CompanyPosNames enum (now CompanyPosName, in line with LocationName)
* Also regenerated all ns documentation. This leads to an expected error when checking for generated files, because PRs should not normally touch markdown files. Also leads to a lint failure in generated file bitburner.d.ts
* also removed some exporting from NetscriptDefinitions.d.ts for anything that wasn't imported somewhere else.

markdown/bitburner.netscriptport.nextwrite.md

@@ -0,0 +1,21 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [NetscriptPort](./bitburner.netscriptport.md) &gt; [nextWrite](./bitburner.netscriptport.nextwrite.md)
+
+## NetscriptPort.nextWrite() method
+
+Sleeps until the port is written to.
+
+<b>Signature:</b>
+
+```typescript
+nextWrite(): Promise<void>;
+```
+<b>Returns:</b>
+
+Promise&lt;void&gt;
+
+## Remarks
+
+RAM cost: 0 GB
+