Base: Add manpage for file(1)

Author: vkoskiv

Base/usr/share/man/man1/file.md

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+## Name
+
+file - determine type of files
+
+## Synopsis
+
+```**sh
+$ file [options...] [files...]
+```
+
+## Description
+
+`file` attempts to identify the type of files.
+
+First, an attempt is made to identify a given file based on predetermined binary patterns. If this fails, `file` will fall back to determining the type based on the filename.
+
+## Options
+
+* `--help`: Display this message
+* `-I`, `--mime-type`: Only show mime type.
+
+## Arguments
+
+* `files`: Files to identify
+
+## Examples
+
+```sh
+# Identify a file
+$ file Buggie.png
+Buggie.png: PNG image data, 64 x 138
+# Identify all files in the current directory, and show only the mime type.
+$ file -I *
+```
+