Pushing initial work for done in Query plan feature to main (#17986)

* Adding initial boilerplate for qp2

* Adding feature flag in query plan 2

* Clearing show plan 2 after every run

* Adding sub tree cost

* removing unused method.

* WIP 2

* Adding properties view and relative cost to query plan

* WIP

* Add icons to ads

* Assing relative costs and prop windows

* Enabling older query plan again

* Making some PR fixes

* Some more PR related fixes

* Use MS org azdataGraph module

* Moving new properties to azdata proposed.

* Moving new class properties to proposed

* added missing doc component.

* Changing how azdatagraph package is referenced

* Removing empty lines, fixing localization keys

* Removing empty line, localizing some string

* making css classes more specific

* making some logic concise

* localizing some more strings

* Making more css classes specific

* Removing important tag from css props

* Checking if sum is greater than 0 to prevent divide by zero exceptions

* Fixed loader error in bootstrap

* Fixing query index

* -fixing image paths
-making css class more class specific by using nested selectors

Co-authored-by: kburtram <karlb@microsoft.com>

yarn.lock

@@ -1831,6 +1831,10 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
   integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
 
+"azdataGraph@github:Microsoft/azdataGraph#0.0.5":
+  version "0.0.5"
+  resolved "https://codeload.github.com/Microsoft/azdataGraph/tar.gz/7812950d661758016962897ec4704a39b118b001"
+
 azure-storage@^2.10.2:
   version "2.10.2"
   resolved "https://registry.yarnpkg.com/azure-storage/-/azure-storage-2.10.2.tgz#3bcabdbf10e72fd0990db81116e49023c4a675b6"