DOC: Move all docs into en/ subdirectory (#1505)

* DOC: Move all docs into en/ subdirectory

PR #1502 is working on adding a Chinese translation to the docs. In
general, I encouraged this (in #1452) as a path towards getting useful
translated content in the game without requiring a massive
refactor/rearchitecting of everything.

To support this, this takes the first step of moving our docs into an
en/ subdirectory, so that other languages can live alongside. No effort
is made at this time to support or select between alternate languages;
this is a pure-rename refactor.

src/Documentation/doc/en/programming/remote_api.md

@@ -0,0 +1,174 @@
+# Remote API
+
+All versions of Bitburner can use websockets to connect to a server.
+That server can then perform a number of actions.
+Most commonly this is used in conjunction with an external text editor or API
+in order to make writing scripts easier, or even use typescript.
+
+To make use of this Remote API through the official server, look [here](https://github.com/bitburner-official/typescript-template).
+If you want to make your own server, see below for API details.
+
+This API uses the JSON RPC 2.0 protocol. Inputs are in the following form:
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": string,
+            "params": any
+        }
+
+Outputs:
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": any,
+            "error": any
+        }
+
+## Methods
+
+## `pushFile`
+
+Create or update a file.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "pushFile",
+            "params": {
+                filename: string;
+                content: string;
+                server: string;
+            }
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": "OK"
+        }
+
+## `getFile`
+
+Read a file and its content.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "getFile",
+            "params": {
+                filename: string;
+                server: string;
+            }
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": string
+        }
+
+## `deleteFile`
+
+Delete a file.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "deleteFile",
+            "params": {
+                filename: string;
+                server: string;
+            }
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": "OK"
+        }
+
+## `getFileNames`
+
+List all file names on a server.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "getFileNames",
+            "params": {
+                server: string;
+            }
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": string[]
+        }
+
+## `getAllFiles`
+
+Get the content of all files on a server.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "getAllFiles",
+            "params": {
+                server: string;
+            }
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": {
+                filename: string,
+                content: string
+            }[]
+        }
+
+## `calculateRam`
+
+Calculate the in-game ram cost of a script.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "calculateRam",
+            "params": {
+                filename: string;
+                server: string;
+            }
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": number
+        }
+
+## `getDefinitionFile`
+
+Get the definition file of the API.
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "method": "getDefinitionFile"
+        }
+
+
+        {
+            "jsonrpc": "2.0",
+            "id": number,
+            "result": string
+        }