assignments: add tc5 + tcL

* tc5_bl.md: Add
* tcL_bl.md: here.

source/bullet_lists/tc5_bl.md

+# TC5
+
+1. src/temp/identifier.hxx
+2. src/translate/exp.cc
+3. src/translate/translator.cc | start
+4. src/translate/translation.cc | start
+5. src/tree/fragment.cc
+6. src/translate/level.cc
+7. src/translate/tasks.hh
+8. src/translate/translator.cc | finish
+9. src/translate/translation.cc | finish

source/bullet_lists/tcL_bl.md

+# TCL
+
+. src/llvmtranslate/llvm-type-visitor.cc
+. src/llvmtranslate/escapes-collector.cc
+. src/llvmtranslate/translator.cc
+  * IntExp
+  * StringExp
+  * OpExp
+  * SeqExp
+  * LetExp
+  * DecsList
+  * VarDec
+  * AssignExp
+  * NilExp
+  * TypeDec
+  * ArrayTy
+  * NameTy
+  * ArrayExp
+  * IfExp
+  * WhileExp
+  * ForExp
+  * BreakExp
+  * Field
+  * RecordTy
+  * RecordExp
+  * FieldVar
+  * FunctionDec
+  * CallExp
+. src/translate/tasks.hh