Detection Resources and Other Updates

[bohops]

This PR primarily adds content for addressing detection info for LOLBINs (e.g. those available). The following has been added:

• Sigma/Elastic/Splunk fields - Relevant rules were linked to the GitHub projects that likely applied to the LOLBIN characteristics. There may be other relevant rules that can always be added. For some LOLBINs, a blank 'Sigma' field was added as a placeholder for a future community rule link.
• IOC field - This is the original field that was included in LOLBAS under Detection. The field is relevant if contextual information is provided. In this PR, IOC fields were updated, added, or removed (if irrelevant).
• BlockRule field - If a lolbin is explicitly mentioned in the WDAC Block Rules, there is a link to the resource.
• Analysis field - This is an experimental field that was added to a single lolbin. Ideally, this will link to a resource (e.g. blog post) that provides insight into a particular detection (engineering) technique/methodology/etc.

Additionally, several content updates were creates that included the following:

• General syntax/quality updates were fixed throughout (e.g. code fields)
• dfshim.dll was added to oslibraries. The content of dfsvc.exe was copied with minor updates.
• sc.exe was updated to reflect service modification tradecraft.
• Other subcommand descriptions/additions

[wietze]

Amazing work @bohops !

I've spot checked many of your additions, trying to find any mistakes, but was unable to find any.
With some python magic I have been able to confirm all URLs you added are valid, correct and working, and no keys other than Analysis, Sigma, Elastic, Splunk, BlockRule or IOC have been used. ✅

[wietze]

Let's merge LOLBAS-Project/LOLBAS-Project.github.io#6 before merging this PR, to ensure the website won't break.

[bohops]

Thank you for reviewing @wietze! The other PR merged, so let's see how this goes :)