[FL-3629] fbt: reworked assets & resources handling (#3160)

* fbt: reworking targets & assets handling WIP
* fbt: dist fixes
* fbt: moved SD card resources to owning apps
* unit_tests: moved resources to app folder
* github: updated unit_tests paths
* github: packaging fixes
* unit_tests: fixes
* fbt: assets: internal cleanup
* fbt: reworked assets handling
* github: unit_tests: reintroducing fixes
* minor cleanup
* fbt: naming changes to reflect private nature of scons tools
* fbt: resources: fixed dist archive paths
* docs: updated paths
* docs: updated more paths
* docs: included "resources" parameter in app manifest docs; updated assets readme
* updated gitignore for assets
* github: updated action versions
* unit_tests: restored timeout; scripts: assets: logging changes
* gh: don't upload desktop animations for unit test run

Co-authored-by: あく <alleteam@gmail.com>

targets/SConscript

@@ -0,0 +1,21 @@
+Import("env")
+
+env.Append(
+    LINT_SOURCES=[Dir(".")],
+)
+
+libenv = env.Clone(FW_LIB_NAME="flipper${TARGET_HW}")
+libenv.Append(
+    CPPPATH=[
+        "#/lib/stm32wb_copro/wpan/interface/patterns/ble_thread/tl",
+    ]
+)
+libenv.ApplyLibFlags()
+
+
+lib = libenv.StaticLibrary(
+    "${FW_LIB_NAME}",
+    env.get("TARGET_CFG").gatherSources(),
+)
+libenv.Install("${LIB_DIST_DIR}", lib)
+Return("lib")