[SDK/CLI] Add chat group poc

[0mza987]

Description

Add chat group sdk poc:

from promptflow._sdk.entities._chat_group._chat_group import ChatGroup
from promptflow._sdk.entities._chat_group._chat_role import ChatRole

copilot = ChatRole(
    flow=FLOWS_DIR / "chat_group_copilot",
    role="assistant",
    inputs=dict(
        question=topic,
        model="gpt-3.5-turbo",
        conversation_history="${parent.conversation_history}",
    ),
)
simulation = ChatRole(
    flow=FLOWS_DIR / "chat_group_simulation",
    role="user",
    inputs=dict(
        topic=topic,
        persona="criticizer",
        conversation_history="${parent.conversation_history}",
    ),
)

chat_group = ChatGroup(
    roles=[copilot, simulation],
    max_turns=4,
    max_tokens=1000,
    max_time=1000,
    stop_signal="[STOP]",
)
chat_group.invoke()

# history has 4 records
history = chat_group.conversation_history
assert len(history) == 4
assert history[0][0] == history[2][0] == copilot.role
assert history[1][0] == history[3][0] == simulation.role

All Promptflow Contribution checklist:

• The pull request does not introduce [breaking changes].
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.
• Create an issue and link to the pull request to get dedicated review from promptflow team. Learn more: suggested workflow.

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Testing Guidelines

• Pull request includes test coverage for the included changes.

[github-actions]

SDK CLI Global Config Test Result hod/chat_group

2 tests   2 ✅  49s ⏱️
1 suites  0 💤
1 files    0 ❌

Results for commit 38a0779.

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[github-actions]

promptflow-tracing unit test result hod/chat_group

 4 files   4 suites   22s ⏱️
 4 tests  4 ✅ 0 💤 0 ❌
16 runs  16 ✅ 0 💤 0 ❌

Results for commit 38a0779.

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[github-actions]

Executor Unit Test Result hod/chat_group

754 tests   754 ✅  47s ⏱️
  1 suites    0 💤
  1 files      0 ❌

Results for commit 31695d0.

♻️ This comment has been updated with latest results.

[github-actions]

promptflow SDK CLI Azure E2E Test Result hod/chat_group

  4 files    4 suites   3m 51s ⏱️
168 tests 149 ✅ 19 💤 0 ❌
672 runs  596 ✅ 76 💤 0 ❌

Results for commit 38a0779.

♻️ This comment has been updated with latest results.

[github-actions]

Executor E2E Test Result hod/chat_group

211 tests   209 ✅  8m 26s ⏱️
  1 suites    2 💤
  1 files      0 ❌

Results for commit 31695d0.

♻️ This comment has been updated with latest results.

[github-actions]

SDK CLI Test Result hod/chat_group

   12 files     12 suites   40m 23s ⏱️
  456 tests   438 ✅ 18 💤 0 ❌
1 824 runs  1 752 ✅ 72 💤 0 ❌

Results for commit 38a0779.

♻️ This comment has been updated with latest results.

[github-actions]

promptflow-tracing e2e test result hod/chat_group

 4 files   4 suites   1m 38s ⏱️
 8 tests  8 ✅ 0 💤 0 ❌
32 runs  32 ✅ 0 💤 0 ❌

Results for commit 38a0779.

♻️ This comment has been updated with latest results.