Slash commands!

Closes #11

Still needs a /help. Look into createLocalMessage IG.

Also, improve message interception so that we can potentially make stuff
like OTR in the future.

That sounds hot, eh?

patches/slashcommands/README.md

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+## DisTok CutTheCord: Slash Commands Patch
+
+This patch adds a message intercept feature with minimal changes to the original code, and adds slash commands.
+
+The following slash commands are supported:
+- /upper
+- /lower
+- /bold
+- /spoiler
+- /me
+- /st (strikethrough)
+- /shrug
+- /tableflip
+- /unflip
+- /fw (fullwidth text)
+
+Commands like fw can be generated by `textreplacegen.py` provided in this folder.
+
+#### Available and tested on:
+- 9.0.0
+

patches/slashcommands/textreplacegen.py

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+fw = dict((chr(i), chr(i + 0xFEE0)) for i in range(0x21, 0x7F))
+
+code = """
+    const-string v0, "before"
+
+    const-string v1, "after"
+
+    invoke-virtual {p0, v0, v1}, Ljava/lang/String;->replace(Ljava/lang/CharSequence;Ljava/lang/CharSequence;)Ljava/lang/String;
+
+    move-result-object p0"""
+
+for entry in fw:
+    if entry in ["\\", "\""]:
+        continue
+    print(code.replace("before", entry).replace("after", fw[entry]))