Everywhere: Add component declarations

This adds component declarations so that users can select to not build
certain parts of the OS.

Userland/DevTools/HackStudio/CMakeLists.txt

@@ -1,3 +1,10 @@
+serenity_component(
+    HackStudio
+    RECOMMENDED
+    TARGETS HackStudio
+    DEPENDS CppLanguageServer ShellLanguageServer
+)
+
 add_subdirectory(LanguageServers)
 add_subdirectory(LanguageClients)
 

Userland/DevTools/HackStudio/LanguageServers/Cpp/CMakeLists.txt

@@ -1,3 +1,8 @@
+serenity_component(
+    CppLanguageServer
+    TARGETS CppLanguageServer
+)
+
 set(SOURCES
     CppComprehensionEngine.cpp
     Tests.cpp

Userland/DevTools/HackStudio/LanguageServers/Shell/CMakeLists.txt

@@ -1,3 +1,8 @@
+serenity_component(
+    ShellLanguageServer
+    TARGETS ShellLanguageServer
+)
+
 set(SOURCES
     ShellComprehensionEngine.cpp
     main.cpp