[crypto] Atomize all traces of MbedTLS, and require OpenSSL 3+ (#3606)

Closes #3137
Closes #3465

- Replace all mbedtls usage with OpenSSL
- require OpenSSL
- Up OpenSSL version to 3, cuz that's what we actually need...

CAVEATS:
- httplib also now required
- other ssl backends for svc are unused, maybe remove later
  * To be fair, our CI never used them anyways. And we never tested those

TESTERS PLEASE TEST:
- All games and applets boot
- Boot, load, exit, etc. times

Co-authored-by: crueter <crueter@eden-emu.dev>
Signed-off-by: lizzie <lizzie@eden-emu.dev>
Co-authored-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3606
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: DraVee <dravee@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

externals/CMakeLists.txt

@@ -41,9 +41,6 @@ if (NOT TARGET enet::enet)
     add_library(enet::enet ALIAS enet)
 endif()
 
-# mbedtls
-AddJsonPackage(mbedtls)
-
 # stb
 add_library(stb stb/stb_dxt.cpp)
 target_include_directories(stb PUBLIC ./stb)
@@ -234,9 +231,7 @@ if (VulkanMemoryAllocator_ADDED)
 endif()
 
 # httplib
-if (ENABLE_WEB_SERVICE OR ENABLE_UPDATE_CHECKER OR USE_DISCORD_PRESENCE OR ENABLE_OPENSSL)
-    AddJsonPackage(httplib)
-endif()
+AddJsonPackage(httplib)
 
 # cpp-jwt
 if (ENABLE_WEB_SERVICE OR ENABLE_UPDATE_CHECKER)

externals/cpmfile.json

@@ -33,6 +33,9 @@
         "find_args": "MODULE GLOBAL",
         "patches": [
             "0001-mingw.patch"
+        ],
+        "options": [
+            "HTTPLIB_REQUIRE_OPENSSL ON"
         ]
     },
     "cpp-jwt": {
@@ -88,20 +91,6 @@
             "0001-avoid-memset-when-clearing-an-empty-table.patch"
         ]
     },
-    "mbedtls": {
-        "package": "MbedTLS",
-        "repo": "Mbed-TLS/mbedtls",
-        "tag": "mbedtls-%VERSION%",
-        "hash": "6671fb8fcaa832e5b115dfdce8f78baa6a4aea71f5c89a640583634cdee27aefe3bf4be075744da91f7c3ae5ea4e0c765c8fc3937b5cfd9ea73d87ef496524da",
-        "version": "3",
-        "git_version": "3.6.4",
-        "artifact": "%TAG%.tar.bz2",
-        "skip_updates": true,
-        "patches": [
-            "0001-aesni-fix.patch",
-            "0002-arm64-aes-fix.patch"
-        ]
-    },
     "enet": {
         "repo": "lsalzman/enet",
         "tag": "v%VERSION%",