feat(icons): Watson discovery icons (#4696)

adds:
improve-relevance.svg
phrase-sentiment.svg
folders.svg
exit.svg
document-sentiment.svg
character-patterns.svg

updates categories.yml and metadata.yml

packages/icons/categories.yml

@@ -189,6 +189,7 @@ categories:
           - drag--horizontal
           - drag--vertical
           - edit-filter
+          - exit
           - fade
           - filter
           - filter--edit
@@ -509,6 +510,7 @@ categories:
           - analytics
           - archive
           - blockchain
+          - character-patterns
           - chart--bar
           - chart--bubble
           - chart--line
@@ -536,16 +538,19 @@ categories:
           - data-vis--3
           - data-vis--4
           - diagram
+          - document-sentiment
           - flow
           - flow--data
           - flow--stream
           - hybrid-networking
+          - improve-relevance
           - managed-solutions
           - network--1
           - network--2
           - network--3
           - network--4
           - parent-child
+          - phrase-sentiment
           - presentation-file
           - query-queue
           - report
@@ -603,6 +608,7 @@ categories:
           - folder--details
           - folder--off
           - folder--shared
+          - folders
           - GIF
           - HD
           - HD--filled

packages/icons/metadata.yml

@@ -336,6 +336,17 @@ icons:
         categories:
           - name: Actions
             subcategory: Navigation
+  - name: character-patterns
+    friendly_name: Character patterns
+    usage: This is a description for usage
+    categories:
+      - name: Organization
+        subcategory: Data
+    aliases:
+      - letters
+      - swap
+    sizes:
+      - 32
   - name: chat
     friendly_name: Chat
     usage: This is a description for usage
@@ -615,6 +626,18 @@ icons:
         categories:
           - name: Organization
             subcategory: File
+  - name: document-sentiment
+    friendly_name: Document sentiment
+    usage: This is a description for usage
+    categories:
+      - name: Organization
+        subcategory: Data
+    aliases:
+      - emotion
+      - meaning
+      - understanding
+    sizes:
+      - 32
   - name: down-to-bottom
     friendly_name: Down to bottom
     usage: This is a description for usage
@@ -723,6 +746,18 @@ icons:
         categories:
           - name: Organization
             subcategory: Status
+  - name: exit
+    friendly_name: Exit
+    usage: This is a description for usage
+    categories:
+      - name: Actions
+        subcategory: Operations
+    aliases:
+      - leave
+      - quit
+      - escape
+    sizes:
+      - 32
   - name: export
     friendly_name: Export
     usage: This is a description for usage
@@ -824,6 +859,17 @@ icons:
         categories:
           - name: Organization
             subcategory: File
+  - name: folders
+    friendly_name: Folders
+    usage: This is a description for usage
+    categories:
+      - name: Organization
+        subcategory: File
+    aliases:
+      - files
+      - collection
+    sizes:
+      - 32
   - name: forum
     friendly_name: Forum
     usage: This is a description for usage
@@ -877,6 +923,17 @@ icons:
         categories:
           - name: Organization
             subcategory: Status
+  - name: improve-relevance
+    friendly_name: Improve relevance
+    usage: This is a description for usage
+    categories:
+      - name: Organization
+        subcategory: Data
+    aliases:
+      - target
+      - bullseye
+    sizes:
+      - 32
   - name: information
     friendly_name: Information
     usage: This is a description for usage
@@ -1224,6 +1281,18 @@ icons:
         categories:
           - name: Actions
             subcategory: Controls
+  - name: phrase-sentiment
+    friendly_name: Phrase sentiment
+    usage: This is a description for usage
+    categories:
+      - name: Organization
+        subcategory: Data
+    aliases:
+      - emotion
+      - meaning
+      - understanding
+    sizes:
+      - 32
   - name: play
     friendly_name: Play
     usage: This is a description for usage