Tests/cocotb (#19)

* wip

* reorg

* update sv int

* apb4 working

* apb3 working

* version bump + ignore runner warning

* remove redundant check

* adding log on failure

* cleaning up verilator version issue

* devcontainer

* Fix missing libpython in GitHub Actions CI environment (#21)

* Initial plan

* Install libpython in GitHub Actions for cocotb tests

Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: arnavsacheti <36746504+arnavsacheti@users.noreply.github.com>

---------

Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>

tests/cocotb_lib/rdl/multiple_reg.rdl

@@ -0,0 +1,22 @@
+addrmap multi_reg {
+    reg {
+        field {
+            sw=rw;
+            hw=r;
+        } data[31:0];
+    } reg1 @ 0x0;
+
+    reg {
+        field {
+            sw=r;
+            hw=w;
+        } status[15:0];
+    } reg2 @ 0x4;
+
+    reg {
+        field {
+            sw=rw;
+            hw=r;
+        } control[7:0];
+    } reg3 @ 0x8;
+};